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Mac Won&#;t Boot or Start? How to Fix Issues With a Mac Not Turning On

Got an iMac or MacBook Air that won't turn on, or maybe won't boot past the Apple logo? Don't worry. It's frustrating, but usually fixable.

Here are all the steps you need to get your Mac started again. Just work through them in order, unless your Mac won't boot after a failed operating system update. In that case, skip straight to step 8.

Where Is the Power Button on a MacBook?

Before you get started, make sure you know how to turn on your Mac.

On newer MacBook models, the power button is the unmarked black square on the top-right of the keyboard. This also doubles as the Touch ID sensor; you just need to briefly press your finger on it to power on your computer.

On an older MacBook, the power button is a clearly marked physical button. It's in the same location on the top-right of the keyboard, alongside the function keys.

You can find the circular power button on an iMac around the rear, bottom-left corner (when looking at your computer from the front). On a Mac Mini, the power button is on the rear, right corner.

1. Check If the Mac Has Power

First, check that your Mac has a power source. Yes, it's silly and obvious, but anyone who's done tech support knows that you have to get the obvious fixes out of the way first.

So if your MacBook won't boot on battery power, plug it in. The battery may be fully depleted, or could be malfunctioning.

If your MacBook won't charge or turn on with the power adapter connected, make sure it's connected properly and not damaged in any way. Try a different power cable, if you've got one around. Also, check that the port is clean. A buildup of dust can disrupt both USB-C ports and older MagSafe chargers.

And while you're at it, check your external hardware as well. Disconnect any peripherals like printers or graphics tablets, as these can sometimes be the cause. If you've got a Mac Mini, make sure the monitor is connected and powered properly.

2. Run a Power Cycle

The next step is to run a power cycle. This completely cuts all traces of power from the Mac and enables you to restart it from scratch.

  • On a recent MacBook, including the Apple silicon models, disconnect the power cable and hold the power button down for 10 seconds.
  • For an older MacBook, disconnect the power cable and remove the battery for at least 10 seconds.
  • If you're using a desktop Mac, disconnect the power cord for at least 10 seconds.

Now reconnect the power and try to restart your Mac. This move may be enough to spring it to life.

Holding the power button down like this is the equivalent to pressing a "reset" button or pulling the plug. It works on phones, ebook readers, and pretty much every other gadget that doesn't allow you to remove the battery, so it's a good tip to remember.

3. Boot in Safe Mode

When your MacBook won't boot, try to remember what you were doing the last time it was working. Were you installing apps, fiddling with fonts, or tweaking the system?

If your Mac shows signs of life when you power it on—if it won't go past the Apple logo or login screen, for example—then booting into Safe Mode may help you fix it.

On an M1 Mac, turn it off, then press and hold the power button until you see the Startup Options load. Now select your main drive, press the Shift key, and select Continue in Safe Mode.

On older Macs, press the power button and immediately press and hold the Shift key. Keep it held until you reach the login screen, then continue as normal.

Safe mode runs a bunch diagnostic tests, then boots a stripped-down version of macOS. This doesn't load your startup apps, custom fonts, extra hardware features, or anything else beyond the basics.

If your Mac boots successfully into Safe mode, you can start uninstalling any new apps, disabling startup items, removing hardware, or undoing any other recent changes that may cause the problem.

4. Reset SMC

The System Management Controller (SMC) controls a host of basic Mac functions. It handles everything from the keyboard backlight, to battery management, to what happens when you press the power button.

Resetting the SMC is a good catch-all solution to many problems, including if your MacBook won't start or it won't wake up when you open the lid. There are a few ways to do it, depending on what model of Mac you've got.

You don't need to reset the SMC at all if you've got a Mac that uses Apple silicon.

Desktop Intel Macs

  1. Unplug the power cord and wait 15 seconds.
  2. Plug the cord back in and wait another five seconds.
  3. Restart your Mac.

MacBook Pro + MacBooks With T2 Security Chip

  1. Press and hold the right Shift key, the left Option key (Alt), and the left Control key for seven seconds.
  2. While keeping these keys pressed, hold down the power button for another seven seconds.
  3. Release all the keys, wait a few seconds, then restart.

Intel MacBooks Without Removable Batteries

  1. Press and hold the left Shift, Option (Alt), and Control keys, plus the power button (or Touch ID button) for 10 seconds.
  2. Release all the keys, then restart your computer.

Older MacBooks With a Removable Battery

  1. Remove the battery.
  2. Press and hold the power button for five seconds.
  3. Reconnect the battery, then restart the MacBook.

5. Reset NVRAM or PRAM

NVRAM (non-volatile random access memory) is a special section of memory that stores certain settings a Mac needs to access quickly. Although problems with this are less likely to render your computer unbootable, resetting it as a precaution will do no harm.

Again, you don't need to do this on a Mac with Apple silicon.

Older Macs used PRAM (perimeter RAM) instead. The process for resetting either is the same:

  1. Press the power button, then immediately press and hold the Option (Alt), Command, P, and R keys.
  2. Keep the keys pressed for around 20 seconds, even if your Mac appears to restart.
  3. If your Mac plays a startup sound, release the keys after you hear it chime for the second time.
  4. If your Mac has the T2 Chip, release the keys after the Apple logo disappears for the second time.

When your Mac has restarted, you'll find that some basic settings like time zone or volume level might need adjusting.

6. Run Apple Diagnostics

Hopefully by now, your Mac is up and running again. If not, you can check for hardware issues by using the Apple Diagnostics tool. This will check for problems, then either suggest fixes or show your support options.

  1. Disconnect any unnecessary external devices, such as a printer. You can leave your keyboard, mouse, and monitor plugged in if needed.
  2. Press the power button.
  3. Press and hold the D key. Keep it pressed until you see a screen asking you to select your language.
  4. Pick a language, then Apple Diagnostics will begin running its tests. These take a few minutes to complete.

When done, you'll see the results of the test. Some will suggest quick fixes, then give you the chance to re-run the test. Others will generate reference codes which you can look up on the Apple Diagnostics page. It'll also show your Mac support options. If there are no issues, then the fault likely is not with your hardware.

On Macs released before June , you'll get the Apple Hardware Test instead. You activate it in the same way, and the principle is the same. Select your language, then click Test to begin.

7. Use Recovery Mode Tools

All Macs have a special Recovery partition on the hard drive. This boots independently of the full macOS and gives you access to a suite of tools for repairing your computer.

To boot into Recovery:

  1. Press the power button.
  2. Press and hold the Command and R keys.
  3. Release the keys when you see the Apple logo.
  4. When it finishes booting, you'll see a new macOS Utilities menu.

The one to try first is Disk Utility. This is a version of the same tool that's available in macOS and enables you to scan and repair your hard drive or SSD. Select the drive and click First Aid to begin the repair process.

There are a few more tools available through the Utilities menu. These include the Terminal for more advanced users.

8. Reinstall macOS in Recovery Mode

If you've gotten this far, then it's likely that your problem is not hardware-related, nor is it a simple software fix. The best solution now is to restore a Time Machine backup, or reinstall macOS entirely.

You can do this through Recovery. Get started by pressing the power button and holding down the Command and R keys.

If you've got a recent Time Machine backup, you can restore that to see if it solves your problem. If not, choose Reinstall macOS from the menu.

When you choose to reinstall macOS, you're given the option to format your disk as part of the process. Don't select this if you simply want to repair your installation—there's no problem with reinstalling macOS on top of itself.

Follow the onscreen guide to complete the installation. You'll need to be connected to the internet, as the tool will download the operating system from scratch. If you can't get to this, you might need to boot your Mac from a USB drive.

Check for Other Warning Signs on Your Mac

All Macs, whether a high-end MacBook Pro or an older iMac, have great reputations for reliability. But they can still run into problems.

Although it's often relatively easy to fix a Mac that's not turning on, it's best to check for warning signs and patch up problems before they strike.

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About The Author
Andy Betts ( Articles Published)

Andy is a former print journalist and magazine editor who has been writing about technology for 15 years. In that time he has contributed to countless publications and produced copywriting work for large tech companies. He has also provided expert comment for the media and hosted panels at industry events.

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MacBook won&#;t turn on? 10 ways to fix it - IT-Tech Online

1. Symptoms of MacBook not turning on

When you press the Power button or Touch ID button on your Mac, if you don’t see any images, video, or visuals of any sort on your display, if you don’t hear a startup chime, and if you don’t hear any fan or spinning drive noise, then most likely your MacBook is not turning on. In other words, your Mac has no sign of power at all.

If your MacBook Air or MacBook Pro won’t turn on after a liquid spill, see our article Spilled water on a MacBook Air or MacBook Pro, what to do now?

If your MacBook won’t start up properly, you only see a question mark folder flashing in the centre of your MacBook screen, see our article How to fix the Mac Question Mark Folder issues

If your computer only works with the adapter plugged in, you have a MacBook not charging issue. Check out our article 12 Ways to fix MacBook battery not charging issue

2. Why won't my macbook turn on?

A MacBook consists of the following components: a screen, keyboard, touchpad, battery, SSD drive and a logic board. Any of these components gone wrong could cause your MacBook won’t turn on.

From the moment you press the power button or Touch ID button, to the MacBook displaying the image on the screen, your MacBook has gone through a series of complicated power-on events. The System Management Controller (SMC) governs the entire MacBook power-on process.

Once the SMC detects that you have pressed the power button, the SMC will co-operate with the Intel chipset to create a series of “mini power supplies” of different voltages (e.g. 5V, V, V, V, etc.) in a precisely defined sequence. These “mini power supplies” will power your Mac’s memory, hard drive, CPU, Wifi, keyboard, trackpad and screen.

If the SMC has not received power, or failed to function, or failed to create the required “mini power supplies”, your MacBook won’t turn on.

For deeper technical details of the MacBook power-on process, see our article How does my MacBook power on?

3. Fix Mac not turning on problem step-by-step

There are lots of reasons why your Mac won’t turn on. We’ll run through various checks, tips and tactics to get your Mac back to work again. In the last section, we will show you how professionals repair Mac computers in the workshop and the resources and equipment used.

Check for any faulty external devices

If your Mac detects the accessories attached to it have short circuits or draw an unusual amount of current from the Mac, the SMC will cut short the power-on process. This is a safety measure to protect your Mac. You can easily rule out if any device is the culprit.

Unplug all the accessories attached to your Mac including printer cable, USB hub, external USB hard drive, HDMI cable, and Mini display cable, even your Magsafe or USB-C charger. In other words, you just let your Mac stand alone. It could be one of your peripherals causing your MacBook Pro or MacBook Air not turning on.

Occasionally, this simple step would fix the “Mac doesn’t turn on" problem.

Reset the SMC or T2 chip

The SMC is responsible for receiving your action (press power button) then starts and manages the entire power-on process. You may consider the SMC as a tiny computer running a tiny operating system and the software sometimes could go wrong. If this happens to your MacBook, you need to reset the SMC.

You will NOT lose any data in your hard drive by resetting the SMC.

Follow these steps to reset the SMC on a MacBook with non-removable battery:

  1. Press and hold the power button for 10 seconds to ensure your Mac returns to its OFF state.
  2. Connect the MagSafe charger; hold Shift-Control-Option on the left-hand side keyboard and the power button simultaneously for 10 seconds.
  3. Release all the keys.
  4. Press the power button to turn on your Mac. Now you have successfully reset the SMC.
MacBook-wont-turne-on-reset-SMC

Apple integrated the SMC chip into the Apple T2 Security chip starting from Follow these steps to reset a MacBook with a T2 chip:

  1. Press and hold the power button for 10 seconds to ensure your Mac returns to its OFF state.
  2. Press and hold these 3 keys for 7 seconds: Control, Option keys on the left-hand side and Shift key on the right-hand side.
  3. Then press and hold the power button as well. Now keep holding all four keys for another 7 seconds, and then release all four keys at the same time.
  4. Wait a few seconds, and then press the power button to turn on your Mac.
MacBook-wont-turne-on-caused-by-the-Apple-security-T2-chip-firmware-corruption

Resetting the SMC on MacBooks with removable-batteries is simple.

  1. Press and hold the power button for 10 seconds to ensure your Mac returns to its OFF state.
  2. Remove the power adaptor and the battery from the MacBook.
  3. Hold the power button key for 5 seconds to discharge any remaining electric energy in the capacitors of the SMC circuit. Alternatively, you can wait for a few minutes until the capacitors discharge naturally.
  4. Re-install the battery back to your MacBook. Now you have successfully reset the SMC.

If SMC reset can’t fix the problem, go on to the next step.

Check for a flat battery

If you haven’t used your MacBook for a long period of time or you have an aged or a swollen battery shown as below, the battery could have been completely discharged, causing your MacBook not to turn on.

MacBook won't turne on - caused by a flat battery

The pre MacBook models have a battery check button and a battery status indicator on the right-hand side of the case. Push this button. If you don’t see any light, then you have a flat battery.

You need to make sure your MacBook is receiving power from either the MagSafe or USB-C charger. Check if the power cable is undamaged and securely plugged into your Mac and a working electrical outlet. If you’re not sure about the outlet, test it with a lamp or a mobile phone charger.

Use the correct power adapter for your MacBook model to charge the MacBook for about 5 minutes. If possible, try to use the original power adapter that came with your Mac.

If the flat battery causes your MacBook Air or MacBook Pro not turning on, most Macs will power on automatically if you connect a working charger to it. However, there are some models of MacBooks that require a minimum battery power before the Mac can turn on. So wait for 5 minutes. Let your charger top up the battery above the minimum level.

If you can see a green or orange light on the MagSafe connector, it means both your charger and the SMC in your MacBook are working now. The SMC has successfully communicated with your charger and then turned on the light. You may try another charger if you don’t have a light on the connector.

After 5 minutes, press the power button to see if your MacBook can turn on. If your Mac still won’t turn on, or if you don’t have a light on the MagSafe connector, go on to the next step.

Perform a power cycle

A MacBook has three major states: Off, Sleep and On. Performing a power cycle means you force the MacBook return to Off state.

In a pre MacBook Pro, there is a sleep indicator on the front edge of the case as shown below. When the MacBook enters to sleep mode, this sleep indicator light will flash. Apple removed the sleep indicator in the recent models. For these newer machines, if you can’t see anything on the screen, it is difficult to tell what state your MacBook is currently in.

Sleep indicator on a MacBook Pro

If your MacBook gets stuck in the Sleep state for some reasons, your MacBook will not respond to normal wake-up signals such as opening the lid, pressing the power button or clicking the touchpad. You need to force the MacBook back to Off state by performing a power cycle.

Press and hold the power button for 10 seconds then release the button. Now you have forced the Mac returning to Off state. If you have a spinning hard drive in your Mac, you may hear a squeak as the hard drive power is forcibly cut. If your MacBook has an SSD drive, you won’t hear anything.

Now you know your Mac is in Off state. Press the power button again to see if your Mac can turn on.

If performing a power cycle can’t fix the problem, go on to the next step.

Check for a faulty screen

When you see nothing on the screen, you may think that your Mac won’t turn on. But that is not always the case! Your Mac may be ON already; only the screen is not working. Therefore, it is vital to double-check any signs of power including sounds and lights to avoid a misdiagnosis.

Check for sounds

Do you hear a startup chime? If you do, your MacBook is already on. Wait for 1 or 2 minutes to check if there is any display on the screen, even a quick flashlight. If you don’t see anything on the screen, your Mac most likely has a screen problem. This is not good news as the screen is one of the most expensive components next to the Apple logic board.

Pick up the MacBook; place the vent holes (between the two screen hinges) near your ear. Do you hear any noise from the fan, mechanical hard drive or super drive? Do you feel any air coming from the vent holes? If you hear the noise or feel the air movement, your Mac is on and your Mac has a logic board problem. Your Mac has already started to turn on but somehow got stuck in somewhere.

Vent-holes-positons-on-a-MacBook-Pro-with-touch-bar

Check for lights

If you don’t see anything on the screen, shine a flashlight through the Apple logo on the back of your screen. If you can see a dim image, press the screen “brightness up” button on the keyboard a few times to increase the screen brightness. If you still get the dim image, you have a screen backlight problem. The screen backlight problem could be caused by a faulty screen or a faulty logic board.

Press the keyboard backlight “brightness up” button a few times, if you can see the keyboard backlight, your Mac is ON already. You may have a screen problem.

Press the Caps Lock key, if you can see the light on, your Mac is running. You may also have a screen problem.

Connect an external monitor to your MacBook via a mini display port, thunderbolt port or HDMI port. If you have a display on the external monitor, you definitely have a faulty screen.

Check for a faulty RAM

If you hear repeating beeps from the Mac, your Mac could have RAM faults that are causing your Mac to not turn on.

If you hear one beep, repeating every five seconds, it means your Mac can’t detect any RAM. If you recently replaced or upgraded your computer’s RAM, check to see if it was installed properly.

MacBook-wont-turne-on-faulty-RAM-slots

If you get three successive beeps, then a five-second pause and keep repeating, your Mac RAM doesn’t pass a data integrity check. If you recently replaced or upgraded your computer’s RAM, check to see if it was installed properly. You also can try different brand names of memory modules. 

If you have a MacBook Air or a MacBook Pro onwards, the memory chips are soldered on the logic board. This design significantly increases the reliability of the memory circuitry as it gets rid of the troublesome RAM slots. If you hear beeps from these MacBooks, you have a logic board problem. You need component-level repair service to fix the logic board. The cost varies from $ to $ depending on the Mac model.

Check for a faulty trackpad

The SMC is powered by an “always-on” power rail called PP3V42_G3H. The trackpad shares this power rail with the SMC. If the trackpad has a short circuit, especially after a water spill on the trackpad, the faulty trackpad could pull down the power rail and the SMC will not be functional. Therefore the SMC will not respond to the action of the power button.

Open the back panel of your Mac and remove the trackpad cable from the logic board. Then press the power button on the keyboard. If your Mac turns on, then you have a faulty trackpad. The trackpad is a less expensive MacBook component. You can buy a trackpad online for less than $

MacBook-wont-turne-on-faulty-trackpad

Check for a faulty keyboard

The MacBook keyboard also shares the “always-on” power rail with the SMC. If a faulty keyboard pulls down the power rail, the SMC won’t work and won’t respond to the power button signal.

Also, if the power button on the keyboard fails to send the signal to the SMC, your MacBook Pro or MacBook Air won’t turn on. These types of faults are common after a liquid spill on the keyboard. Sometimes the keyboard stops functioning straight after a water spill, and sometimes the keyboard would stop working after a few months of spillage.

Remove the keyboard connector AND the battery from the logic board, then connect a MacBook charger to the charging port. Your Mac would automatically power on if the fault is in the keyboard. A MacBook with Intel i3, i5, i7 and i9 CPU will automatically power on if you remove the battery and connect a charger to it

MacBook-wont-turne-on-faulty-keyboard

Restore corrupted T2 security chip firmware

Starting in , Apple integrated the SMC chip to a larger multifunctional chip called Apple T2 security chip in the new MacBooks. The T2 chip takes over the duty of SMC. If the T2 chip is not functional, it won’t respond to the power button and your MacBook won’t turn on.

When you update your Mac’s macOS, for example from Mojave to Catalina, and something goes wrong in the middle the process, you could brick your Mac.

Apple time to time includes device firmware update (DFU) in the normal security update or version update. This DFU will update your Mac’s FIRMWARE. When you install the macOS update that contains a DFU, you not only update the macOS software in your SSD drive, but also the firmware in the T2 chip. Therefore you don’t have to buy a new Mac in order to run the new macOS smoothly or fully optimise the new features.  However, if the firmware update failed to complete the whole process for some reason, you could end up with T2 chip firmware corruption. In other words, you may have bricked your Mac.

To fix a bricked Mac, you need a working Mac and download the firmware from Apple’s website. Then you force the bricked Mac into DFU mode so you can transfer the firmware to the bricked Mac via a USB cable shown as below:

MacBook won't turne on - caused by corrupted T2 chip firmware
  1. Go to Apple’s website to download the app Apple Configurator 2. You may need to update to the latest macOS to run the app. Open the app and make sure your Mac is connected to the internet.
  2. Use your USB-C charger cable as a USB cable. Connect one end to any port of your working Mac.
  3. Connect the other end of the USB-C cable to the MASTER port of your bricked Mac. The master USB-C port is the one on your left-hand side and closer to you.
  4. Press the power button or touch ID button for 1 second. While holding the power button, press and hold the Control and Option keys on the left-hand side, the Shift key on the right-hand side until you see the big font text “DFU” showing on the working Mac. Usually, it will take about 10 seconds for the “DFU” sign to show up.
  5. Release all the 4 keys at the same time. Now your bricked Mac is in DFU mode.
  6. Go back to your working Mac, click to select the DFU device on the screen and select Action from the menu bar. On the pull-down menu bar select Advance and select Revive Device. Confirm the action.
  7. Now the working Mac will download the correct firmware from Apple’s server and install the firmware to your bricked Mac. This may take up to 5 minutes.
  8. After finishing the installation, your Mac will automatically power on. If you can see the Apple logo, congratulations! You have successfully saved the bricked Mac.

Check for a faulty battery data cable

The 15 inch and 16 inch MacBook Pros manufactured between and behave very differently. Unlike the other MacBooks, these models of MacBooks will not power on normally without a working battery connected to it even if you connect a working charger to it.

In the new MacBooks with USB-C charging ports, the battery power terminals and data communication lines are no longer on the same connector. Instead, the power terminals (“+" and “-“) are connected to the logic board and secured by a T5 screw to provide better contacts. The data lines are connected to the logic board via a flex cable.

MacBook-wont-turne-on-caused-by-faulty-battery-data-cable

This tiny flex cable is prone to failure. If the battery fails, or the battery flex cable fails to contact properly, your Mac won’t turn on. But if you connect the USB-C charger to it, it will show a charging battery symbol on the screen for a few seconds then turn off again as shown below:

MacBook won't turne on - battery power low symbol

If you see this symbol, you most likely have a battery problem. Replacing the battery is very expensive if you get it done by Apple stores or Apple authorised service providers. They will replace the whole top case including your WORKING keyboard, trackpad, touch bar, speakers along with the faulty battery. Of course, you have to pay for all these components if your Mac is out of warranty. A third-party repairer may replace the faulty battery only at a low cost.

4. Choose repair services - Apple vs. third party

If all the above attempts failed to fix your MacBook, you may consider using a professional MacBook repair service.

There are two types of services. The first type is Apple Stores and Apple Authorised Service Providers (ASP). The second type is a third-party repairer. We will discuss the pros and cons of these services.

Apple Stores and ASPs

We suggest you make an appointment with the Genius Bar or ASP to get a free diagnosis and quote, no matter if you intend to use their service or not. These are the services you can get from them depending on whether or not your Mac is under warranty:

If your Mac is under warranty, you don’t have to worry about anything except for your data. They will replace the faulty component for free. Apple will NOT take responsibility for your data or provide data transfer/recovery service. Therefore make sure the service will not affect your data. If the service could cause data loss and you haven’t backed up your data on iCloud, you may need to back up the data to an external hard drive yourself or use a professional data recovery service.

If your Mac won’t turn on due to a liquid spill, and the colour of the liquid indicators has changed from white to red as shown in the photo below, you void the standard warranty. All MacBook models have liquid indicators near the entrances where liquid can get in easily. The liquid damage indicators are usually under the keyboard, trackpad, and the edges of the logic board.

MacBook won't turne on - water damage indicators on a Mac logic board

If you have purchased AppleCare+ that covers water damage, Apple will charge a $ excess fee to get your Mac repaired.

If your Mac is out of warranty, you need to pay for replacing the faulty component. They provide high standard services and you don’t have to worry about quality issues. But the services are expensive. They don’t repair individual MacBook components. Instead, they replace multiple related components at a high cost. For example, if you have a swollen battery, you have to replace the top case, keyboard, trackpad, and touch bar all together even if they are still working beautifully.

If you purchased the Mac from a large department store, getting service from Apple directly can avoid unnecessary delay. You won’t need any middle agent to deal with the repair.

If you have a faulty logic board, they may tell you the Mac is not repairable or quote a very high price for logic board replacement. This is the tactic to promote the new Mac sales. They will not tell you that there are some Mac repair specialists who can repair the logic board professionally at a fraction of their quote price.

Third-party services providers

The computer service industry is not a regulated industry. The level of third-party services varies from top professionals to newbies.

You can easily find a local computer repair store even if you live in a remote small town. They may be very good at fixing your Windows software problems. They may be very good at upgrading the hard drive in your Windows-based laptop or they may have done a good job replacing your broken iPhone screen. But the majority of these stores lack the skills, knowledge and equipment to handle the complexity of Mac computers. If your Mac has a simple problem such as faulty trackpad or battery, you may consider these service providers. If you have a logic board problem, avoid using these services.

There are some third-party service providers that offer services close to Apple’s standard. They may charge much less than Apple or ASPs. So it is worth getting a second quote from these service providers addition to Apple’s quote. Besides the prices, pay attention to the fault descriptions. Do they have the same diagnosis result? If not, talk to them for more details.

Customer reviews such as Google Reviews, Yelp Reviews can provide lots of information about the service providers. Do they have a high rating? How many reviews relate to Mac computers such as MacBook, iMac, Mac Mini? If the majority of the reviews are not for Macs, they may not have adequate experiences on Mac repairs. If the reviews have no details, only a few words like “excellent” “highly recommend”, discount the reviews.

There are some Mac repair specialists who offer component (chip) level logic board repairs. Their skills and knowledge are well above the Genius Bar’s technicians. Apple technicians may tell you that the logic board is not repairable. This is not true. The majority of faulty logic boards can be economically repaired with proper skills, knowledge and equipment.

These Mac repair specialists work on troubleshooting logic board components (or chips) such as transistors, resistors, capacitors, CPUs, GPUs and so on. They can identify the faulty chips among the many thousands on the board and then replace them without damaging the surrounding chips. This is the most economic way to get your Mac working again. The logic board repair services cost $$ depending on the Mac model.

If you check the customer reviews of these Mac repair specialists, you will find the majority or even all the reviews are about Mac repairs. Lots of people would share the details of their repair experiences after they received outstanding services.

Unfortunately, there are only a handful of chip-level repair services available even if you live in a large city. So if you can’t find any in your city, you may consider sending your Mac to another city or country to get it repaired. Again, check their customer reviews and talk to them before sending your Mac.

https://www.rossmanngroup.com/Currently, We only offer mail-in service within Australia. If you are in the United States or other countries, contact Rossman Repair Group in New York. They offer a worldwide mail-in service.

5. Professional MacBook repair in action

There are two levels of professional MacBook repairs: basic repairs and advanced repairs. The Genius Bar technicians, ASP technicians and most experienced third-party repairers offer basic repairs only. The Mac repair specialists offer both basic repairs and advanced repairs.

A MacBook consists of the following parts: a screen, keyboard, touchpad, battery, mechanical or SSD hard drive, DVD drive, Wifi card, logic board and Cables connecting other parts to the logic board. The objective is to identify the faulty part(s) and replace it.

This type of repair doesn’t require advanced electronics knowledge, micro-soldering skills and understanding of MacBook logic board design. This is how they approach MacBook repairs:

  1. Open the bottom panel and inspect any liquid or corrosion inside the Mac.
  2. If there is no water damage, connect a dedicated power unit to the MacBook. Check for the electric current being drawn from the power supply.
  3. Press the power button on the keyboard to see if there are any current changes. If there is no change, remove the keyboard cable, battery cable and any other cables from the logic board and perform a “forced" power-on to the logic board. If there is still no change of current, the logic board is faulty.
  4. If the logic board can be powered on manually, re-connect cables one by one to determine which one is preventing the logic board from powering on.
  5. Replace the faulty part(s) that prevent the Mac from turning on.
  6. This part-replacing type of repair is entirely dependent on the availability of the spare parts. If there are no spare parts then there is no fix.
  7. The logic board is the most expensive part of the Mac. If the logic board is faulty, the Mac will be considered as “not fixable” by this level of repairer. Apple may offer a logic board replacement at a high price.

Logic board failures account for the majority of dead Macs. Repairing the failed logic board is the most cost-effective way to save your Mac. Only component level service providers can carry out this type of task:

  1. Remove the logic board from the Mac case.
  2. Inspect the logic board using a microscope. Look for any obvious burned, corroded chips.
  3. Replace any faulty chips found. Micro-soldering skills are required to replace the small chips. Replacing a larger chip such as GPU or CPU needs a BGA rework station and the related skills.
  4. Connect a dedicated power supply to the logic board. Based on the electric current being drawn from the power supply and other basic measurements, an experienced technician or engineer could lock-in the possible faulty circuit.
  5. Work with Apple’s schematics (electronic circuit design diagram), follow the control signals, measure the relevant resistors, capacitors, ICs and voltages with a multimeter, measure the electronic signals with an oscilloscope or logic analyzer to narrow down the fault area. And finally, pinpoint the faulty chips.
  6. Replace the faulty chips. Repeat this process until all the faulty chips are found and replaced.
  7. Assemble the logic board back to the case. Test Mac’s functionality and reliability with ASD (Apple Service Diagnostic) and other third-party testing software. If the Mac failed to pass the test, pull out the logic board and start troubleshooting again.

Pinpoint the faulty chips among the many thousands on the logic board is a complex reasoning process. In one sense, it is like a meticulous forensic investigation. In order to perform the task effectively and economically, one needs specific electronic knowledge, detective reasoning skills, micro-soldering skills, experience, proper equipment and most importantly: a comprehensive understanding of the Apple Mac logic board designs – the electronic schematic diagrams.

Sours: https://www.it-tech.com.au/macbook-wont-turn-on/
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How To Fix A MacBook Won&#;t Turn On Issue

If you’ve ever used a Windows computer before for comparison, you know that Macs in general are far more reliable and rarely let you down. But the inevitable happens with technology: computers get old, internal memory wears out, battery cycles get shorter and shorter. 

So if one day you woke up but your Mac didn’t, it might feel like your life has stopped when you think about all the lost in-progress work, photos, documents, etc. Don’t worry — all you need to do is methodically follow a series of steps to bring your machine back to life.

Solutions For MacBook Not Turning On

When your MacBook Air or MacBook Pro won't turn on, it’s very rare that the problem is with the whole setup — more likely one of the components is misbehaving, which can range from your display to software glitches. Our task here is to isolate this problem to solve it. 

The first step is to check, as obvious as it sounds, whether your Mac has any battery life left (or in the case of iMacs whether the cable is connected correctly). Try unplugging and plugging your Mac back in. If you have an older MacBook, your MagSafe cable will show you a green light if the computer is charged and amber if it’s still charging. 

As a rule, try to only use Apple-made cables. Even though they could be more expensive (check eBay or Craigslist for secondhand ones), they are more likely to be safe for your Mac and not put extra strain on your battery life. Also, don’t forget to test your outlet — it might just be that you’re using a faulty one.

1. Boot up your Mac

Once you know your Mac is powered properly, try turning it on by pressing the power button. Do you hear the fans or any sounds at all? If yes, it might be that your Mac’s problem is with software. If your Mac won’t boot at all, it might be something to do with hardware.

In both cases, when you MacBook Pro or MacBook Air won’t turn on, make sure to disconnect all keyboards, mice, external HDs, and so on to make sure they are not part of the problem. If nothing has changed, you need to do a power cycle.

2. Go through a power cycle

If you’re certain that your MacBook Pro won't boot, a good option is to enable a power cycle, which is basically a forced restart. 

To do a power cycle:

  1. Shut down your Mac by pressing the power button (keep pressing)

  2. Unplug all the power cables

  3. Hold the power button for 10 more seconds

  4. Restart the Mac as usual

Hopefully, the Mac won’t turn on issue is now fixed.

3. Rule out your display

In rare cases, it might be your display that’s giving you all the trouble. Checking all the cables (if you’re on a desktop) for proper connection should be your first option, of course, but sometimes there could be a glitch with a battery power circuit that for some reason won’t trigger the screen light. 

The thing is, your MacBook black screen is still working. One way to fix the problem, especially when your MacBook won't turn on this way, is to hold your laptop to a bright window to let the sun shine through the back of your screen. This way, you should actually be able to see enough to log in, after which your screen should turn on normally.

4. Repair your Mac in Recovery Mode

Going from cables to other external inputs to display, it’s natural to turn to your hard drive next, which could now be broken in some way. The good news is your Mac features a handy way to try to fix this called Disk Utility, which you can access through Recovery Mode.

To initiate Recovery Mode: 

  1. Make sure your Mac is completely shut down

  2. Hold ⌘ + R and turn your Mac back on

  3. You’ll see a new window pop up with some options to choose from. Click Disk Utility ➙ Continue.

  4. Select your hard drive

  5. Click First Aid

  6. After the process is complete, turn your Mac off and on

5. Restart Mac in safe mode

If you’re still experiencing problems, it’s possible to restart MacBook in safe mode to bypass lots of small processes that might sidetrack your Mac from working properly. 

Entering safe mode is easy: 

  1. Turn off your Mac

  2. Power it back on while holding Shift

  3. Release Shift when you see a login menu

Now that you know the situation with your Mac is not hopeless, you’re getting closer to the finish line. Sometimes, you just need to restart MacBook once more for everything to work smoothly.

6. Reset your Mac’s NVRAM

Even when your Mac is turned off, there’s a special kind of memory that’s keeping tabs. It’s called non-volatile random-access memory (NVRAM) and in very rare cases can lead to problems booting up. But if you’ve already tried all the tips above, it could be a very rare case indeed.

To reset NVRAM: 

  1. Turn off your Mac

  2. Hold ⌘ + Option + P + R and turn on your Mac

  3. Release the keys when you hear the second startup chime

7. Reset the SMC

Another vital operator in your Mac’s ecosystem is the System Management Controller (SMC). It handles keyboard backlighting, responds to you pressing the power button, manages your battery, etc.

Resetting the SMC is essentially the last thing you can do before you completely reinstall the macOS:

  • If you’ve got a MacBook, press Shift + Control + Option and power up

  • For iMacs, simply unplug the cable for 15 seconds, plug it back in, wait five more seconds, and then power up

8. Back up with Target Disk Mode

Naturally, you don’t want to lose any of your data while doing a clean macOS installation. But even if your Mac won't boot, you can still try to get the information out via a hack known as Target Disk Mode. 

For this, you need a second Mac and a Thunderbolt cable:

  1. Connect the two Macs

  2. Turn off your Mac completely

  3. Power your Mac back on while holding the T key until the cable icon appears on your screen

  4. Now your Mac’s hard drive should appear as an external one on the other Mac’s Finder

  5. Simply copy any files needed to the other Mac

Hopefully, if everything worked, your files are safe! 

9. Get a new macOS

The final step of the MacBook Pro won't turn on saga is to reinstall the macOS, which should fix any software-related problems for sure. 

To do so, just restart your Mac in Recovery Mode as described above (holding down ⌘ + R) and select the Reinstall macOS option from the menu. If any problems persist beyond this point, your next stop should be an appointment at the Apple Store’s Genius Bar. 

Keep up-to-date backups and monitor your Mac

Truth be told, it’s exhausting and frustrating to go through every step outlined above, but might be necessary if you don’t keep regular backups and are not aware of the state your Mac is in. So, if the disaster hasn’t struck yet, let’s fix those things!

Disk Drill is the ultimate app you need for timely and secure backups to an external hard drive. All done from a single and straightforward menu. What’s more, the app is also world-class at recovering deleted files too, so you never lose any files whatsoever again.

Disk Drill backup Mac recovery

iStat Menus is another must-have utility that’s going to be responsible for your Mac’s wellbeing. Just a few icons in your menu bar can tell you the exact state of anything, from your battery to CPU to RAM, in real time. Then if you see your processor underperforming or memory being frequently maxed out, you can take preemptive measures and avoid the catastrophe completely.

iStat Menus monitor Mac recovery 

As you can see, taking care of your Mac shouldn’t be hard — just two apps will do. And if you encounter a MacBook black screen or your Mac won't turn on, go through the checklist above to solve the problem in minutes. 

Best of all, Disk Drill and iStat Menus are both available to you for free for seven days via Setapp, a platform with over essential utilities and apps that your digital life productive and secure. Just over to the Setapp website to start your trial: sure, you could’ve been doing backups for years, but the second-best time to start is now!

Sours: https://setapp.com/how-to/fix-a-macbook-wont-turn-on-issue
My MacBook Won’t Turn On? Fix Your Laptop Now!
MacBook with its screen turned off

Macs aren&#;t immune to problems. Your Mac may sometimes not respond to the Power button at all, or macOS might crash or fail to start up properly. Here&#;s what to do if your Mac won&#;t turn on.

The first steps here assume your Mac just isn&#;t responding when you press its power button. If it&#;s responding but failing to boot up normally, scroll down to the Recovery Mode sections.

Ensure It Has Power

Ensure your Mac is plugged into a power source. Try swapping out the charger or power cable, or using a different power outlet. The charger itself may be damaged. If you&#;re using a MacBook and its battery is completely dead, you may need to wait a few moments after plugging it in before turning it on. It won&#;t necessarily boot immediately the moment after you plug it in.

Old and broken Apple Mac charger

Check the Hardware

Assuming you&#;re using a Mac desktop, check that all its cables are correctly seated. For example, if it&#;s a Mac Mini, ensure the video-out cable is connected securely to both the Mac Mini itself and the display. Try reseating all the cables&#;unplug them and then plug them back in&#;to ensure they&#;re securely connected.

If you&#;ve recently opened up your Mac and fiddled with its hardware, that could have caused the problem. For example, if you installed RAM or swapped out a hard drive, you may want to try swapping back in the old hardware or just ensuring those components are securely seated in your Mac.

If all else fails, try unplugging all unnecessary peripherals before trying to boot your Mac.

Charger plugged into a MacBook's USB-C port

Perform a Power-Cycle

If your Mac is stuck in a frozen state and not responding to power button presses, you can fix it by cutting the power to it and forcing it to restart.

On a modern MacBook without a removable battery, press the Power button and hold it down for ten seconds. If your Mac is running, this will forcibly cut the power to it and force it to restart.

With Mac desktops (iMac, Mac Mini, or Mac Pro), unplug the power cable, leave it unplugged for ten seconds, and then plug it back in.

Finally, if you have an older Mac with a removable battery, shut it down, unplug it, remove the battery, wait ten seconds, and then reinsert it.

RELATED:How to Power Cycle Your Gadgets To Fix Freezes and Other Problems

Reset the System Management Controller Firmware

In some cases, you may need to reset the system management controller (SMC) firmware on your Mac. This is the last thing you should try if your Mac isn&#;t responding to power button presses at all.

On current MacBooks without a removable battery, plug in the power cable. Press the Shift+Control+Option keys at the left side of the keyboard and the Power button, and hold them all down. Release all four buttons at the same time, and then press the Power button to turn the Mac on.

Mac desktops don&#;t have batteries, so unplug the Mac&#;s power cord and leave it unplugged for fifteen seconds. Plug it back in, wait five more seconds, and then press the Power button to turn the Mac back on.

With older MacBooks with a removable battery, unplug the Mac from its power source and remove the battery. Press the Power button and hold it down for five seconds. Release the Power button, reinsert the battery, plug in the Mac, and press the Power button to turn it back on.

MacBook that won't turn on

Use Disk Utility From Recovery Mode

Assuming your Mac is actually booting up but macOS isn&#;t loading properly, there&#;s likely a software problem. Your Mac&#;s disks may be corrupted, and you can fix this from recovery mode.

To access recovery mode, boot your Mac up. Press and hold the Command + R keys during the boot-up process. You should try to press these immediately after you hear the chime sound. Your Mac should boot to recovery mode. If it doesn&#;t, you probably didn&#;t press the keys soon enough&#;restart your Mac and try again.

Click the &#;Disk Utility&#; option, click over to the First Aid tab, and try repairing your Mac&#;s disk. The Disk Utility performs an &#;fsck&#; (file system check) operation, so you don&#;t need to run the fsck command manually.

RELATED:8 Mac System Features You Can Access in Recovery Mode

Restore From Recovery Mode

If the Disk Utility didn&#;t work, you can reinstall macOS on your Mac.

Use the &#;Reinstall macOS&#; option in Recovery Mode to have your Mac automatically download the latest macOS installation files and reinstall its operating system. You can also restore from a Time Machine backup. If your Mac operating system is damaged, this will replace the damaged software with a fresh, undamaged operating system.

RELATED:How to Wipe Your Mac and Reinstall macOS from Scratch


If nothing here worked&#;if your Mac just won&#;t turn on at all no matter how many times you press its Power button, if recovery mode isn&#;t functional, or if macOS doesn&#;t load properly even after you reinstall it from Recovery Mode&#;your Mac likely has a hardware problem.

Assuming it&#;s under warranty, you should contact Apple or take it to a local Apple Store to have them fix the problem for you. Even if you don&#;t have a warranty, you may want to take it to an Apple Store or another place Apple computers are repaired and have them attempt to fix it.

RELATED:So Your Mac Isn't Getting macOS Updates, Now What?

Sours: https://www.howtogeek.com//what-to-do-when-your-mac-won%E2%80%99t-start-up/

Not macbook starting pro

Nothing causes that sinking feeling like when you go to boot up your MacBook Pro, and nothing happens. It will usually occur when you have a lot of studying to do, a deadline looming, or an important email to send. Aren’t those scenarios when things like that happen? Of course, they are.

What to Do if Your MacBook Pro Won’t Turn On

Apple devices are known for being very reliable (reasonably, but their intentional designs like keyboards and others depending on model/release, ensure less longevity, so you’re forced to buy a new one, but we won’t go there in this article). No matter the reputation, every device has issues at one point or another.

This guide assumes you have not made any recent changes to your MacBook Pro, such as adding or replacing RAM or performed any significant hardware modification. In the case of macOS laptops, here is what to do if your MacBook Pro won’t turn on.

What to do if your MacBook Pro won’t turn on2

1. Check for Black/Blank Screen

When you initially tried to turn on your MacBook Pro, did it not turn on at all, or did the screen stay black?

A black screen is a regular problem for laptops and is not restricted to Apple. Before you do anything else, first make sure you didn’t just accidentally set the brightness to zero.

There are two keys along the top of the keyboard that have sun icons on them. One is to darken the display, and the other is to brighten it. Although most laptops won’t go black with this setting, it stills needs to be confirmed. If the brightness does not affect the black screen, move on. Turn off the laptop, remove all peripherals you have attached, and then turn it on again while listening carefully.

Do you hear any whirring? Any beeps? Fan noises? If you hear something but see nothing, it may be the screen and not the laptop. If you hear nothing, you need to troubleshoot further.

2. Boot to Recovery Mode

If you hear noises and receive feedback while performing actions, but the screen is black, you can try to boot the MacBook into Recovery Mode to repair any issues it’s having. To boot into Recovery Mode, hold down the power button. If this action works, you should see the macOS utility screen.

If Recovery Mode was successful, reboot your Macbook, and it should start normally. If not, continue reading; there may be other issues.

3. Check Power Connections

Plug your MacBook Pro charger into the laptop and the wall socket. Verify both connections are tight. Ensure the power cord isn’t damaged. If nothing happens, try a different wall socket or check the one you’re using with a different device.

If the outlet works, check the power cord or adapter. If you’re fortunate enough to have a spare of either, try them. If you can borrow a spare for five minutes, do that. But first, promise not to break it because it is worth its weight in gold. If the laptop still won’t work with a different charger, continue troubleshooting.

Note: The charger used should match the specs of the OEM charger for your specific model. There are a couple of different chargers at the least. For instance, the Mid MacBook Pro uses an watt charger.

Make sure that you’re using Apple-branded cables if possible. Some third-party charging cables do not have the correct amperage needed to power your device properly, or the wires are brittle inside and could be damaged. Using the cable and charging block that came with your device may be the trick to getting your computer turned on.

4. Power Cycle

The next step involves performing a complete power cycle of your MacBook Pro. While it sounds involved, it is very straightforward.

All you need to do is hold down the power button for a minimum of ten seconds. This action cuts all power to the laptop and is the equivalent of removing the battery. You may hear a noise as you do this.

Once you have held the power button down and then released it, leave it off for a few seconds and then press it again to start the MacBook Pro as normal. If you’re fortunate, it will boot successfully. If not, the MacBook Pro will still fail to start, and you’ll need to keep reading.

5. Reset the SMC

The SMC is the System Management Controller. It manages all the low-level functions of the Macbook Pro, such as the power button, display, battery, fans, motion sensing, keyboard, indicator lights, and other similar elements. Resetting the SMC is usually left until last as it resets many settings back to their defaults. If you have gotten this far without a successful boot, try resetting the SMC on your MacBook Pro.

  1. Unplug the laptop from the charger and peripherals.
  2. Hold down Shift + Control + Option and the power button for ten seconds.
  3. Let go of all keys and reconnect the charger.
  4. Then, press the power button to boot your laptop.

If an SMC error was causing the MacBook Pro not to boot, it should now boot normally. You will have to reconfigure some hardware settings once it successfully starts up, but it is a small price to pay for getting your laptop working again. This setback is undoubtedly better than professional maintenance that takes time, and costs money.

6. Remove the Battery

If you’re using an older MacBook Pro, it may have a removable battery. Check underneath to see if the battery is removable or not. You should see a small locking clip next to the battery if it’s comes out. To remove the battery, do the following:

  1. Undo the locking clip underneath your MacBook Pro.
  2. Lift the plastic flap to expose the battery.
  3. Pull the small tab to release the battery and remove it.
  4. Reverse the process to reinsert or replace the battery, or replace the flap and clip.

A newer MacBook Pro will not have a removable battery, so this procedure will not be relevant to you if you own one.

7. Unplug Your Accessories

It may sound strange, but if your MacBook is having trouble booting up properly, it’s worth trying to boot it with everything unplugged.

Any USB devices, printers, or other connections should be temporarily unplugged. Once done, try to reboot your MacBook by pressing and holding the power button.

If your MacBook Pro still won’t turn on, there is very little you can do at this point without voiding the warranty. It may be better to find your nearest Apple Store and let one of the technicians take a look. What it can hopefully accomplish is getting your laptop working again without affecting the warranty or potentially making things worse!

Additional Problems

As mentioned by some in the comments, if your MacBook is powering up but not displaying, then you most likely have an issue with your screen cable, screen, or graphics card.

If your OS reinstall process was interrupted, then your issue could be with a corrupted or now non-existent critical system file. You’ll want to reattempt the reinstall process using a flash drive or network install.

Powering MacBooks

Given their cost, it’s always a hassle when a MacBook won’t power up. If this happens to you, follow the steps above, or take it into a reputable repair shop or Apple Store if it’s still under warranty.

Share your thoughts and experiences on MacBook Pros not powering up below.

Sours: https://www.alphr.com/macbook-pro-wont-turn-on/
6 Workable Ways to Fix Mac/MacBook Pro/ MacBook Air Won’t Turn on Issue

MacBook Pro Won't Turn On? 6 Ways to Fix It

A MacBook Pro that won't turn on may need to be serviced at the Apple Store, but before you take it in, try a few things to see if the problem is something simple you can fix.

Reasons a MacBook Pro Won't Turn On

When a MacBook Pro doesn't turn on at all, the problem is often related to the power from a wall outlet and the cable that supplies it to the Mac or its battery. However, there are other possible culprits.

How to Fix a MacBook Pro That Won't Turn On

Press the Power button on the MacBook Pro and listen for sounds from the fan or humming or whirring noises. If you hear anything or see lights on the keyboard, your Mac is starting up just fine, but your display has a problem that may require professional help. However, if you hear and see nothing, these fixes may get your MacBook Pro back up and running.

  1. Check the power connections. If your MacBook Pro won't turn on at all, then the first thing to check is that it's plugged in. Wait a few minutes before turning on the Mac again. Don't forget to check the power outlet with a lamp or another device to make sure the outlet functions correctly.

  2. Swap out the power cable or adapter. If the Mac is plugged in and doesn't turn on, the power cable may be faulty. Swap it with a known working cable to help pinpoint the problem.

  3. Charge the battery. If you run your laptop on battery power, the battery may be dead. Plug in the laptop and wait at least 10 minutes while the battery charges before starting the MacBook on battery power. If you can't charge the battery, take the MacBook to an App Store or an Apple Authorized Service Provider for a replacement. Here's how to go about replacing your MacBook Pro's battery.

  4. Turn up the screen brightness. It's possible the MacBook Pro is turned on, but you can't see it. Press the F2 key at the top of the keyboard to make the screen brighter. On MacBook Pros with the Touch Bar, the brightness control is on the Touch Bar, but if the Touch Bar isn't lit up, the MacBook Pro isn't turned on.

  5. Remove all accessories and peripherals from the Mac. A problem with a printer, external drive, USB hub, or mobile device—or one of the cables—could prevent the Mac from starting.

  6. Reset the System Management Controller (SMC). The SMC controls much of the basic functionality of a Mac, from its display and lights to its fan and Power button. Resetting it sometimes resolves whatever stops the MacBook Pro from turning on. The method differs for MacBook Pros from or earlier or for the recent MacBook Pros with the T2 security chip.

Thanks for letting us know!

Sours: https://www.lifewire.com/fix-macbook-pro-that-wont-turn-on

Now discussing:

MacBook Not Turning On? Take These 8 Steps to Fix It

 

 

If your Mac is not starting up, it can be incredibly annoying. However, whether you have a MacBook Pro, MacBook Air, or even an iMac that won’t boot, this article will help you to fix this problem.

 

Before we start

 

If you want to minimize the risks of a situation like this ever happening again — keep your Mac optimized and don’t clog it up with unnecessary files. It may be hard to maintain manually, but you can always make use of some extra help.

 

Get MacKeeper and let it clean junk, app leftovers, and duplicates from your device. It will also help you to manage your memory, install timely updates for all your apps, and reduce your Mac startup time, which in turn may lead to improved performance.

 

Here’s what to do if your MacBook won’t turn on:

  1. See if your Mac has power
  2. Check the hardware
  3. Perform a power cycle
  4. Reset the SMC
  5. Restore from Recovery mode
  6. Reset the NVRAM
  7. Boot in safe mode
  8. Reinstall macOS

1. Ensure your Mac has power

There are many reasons why your MacBook won’t turn on. And to fix this problem, first, you need to determine whether your Mac won’t boot because it is not charged.

 

To know whether it’s a power problem or not:

  1. Press the Power button
  2. Look for signs of life such as startup chime, fan noise, or light indicators when you press the Caps Lock button, etc.
  3. If your Mac gives none of the aforementioned signs of life, then it’s definitely a power issue

 

How to fix it? Well, if your computer won’t power on, then maybe its battery is just dead. Try charging it for five minutes at least. If it doesn’t help or you’ve got a desktop Mac, proceed to the next step.  

 2. Check the hardware

  1. Power cord check: Sounds obvious, but you should check the power cable first. Make sure that the connection to the power socket is ok and the cable itself isn’t damaged
  2. Outlet check: Make sure that the electrical outlet is working. You can simply check it by plugging in a lamp or your phone charger
  3. Battery check: If you are using a MacBook make sure it has the right power cable and adapter. Moreover, you can try to plug it in for at least 5 minutes to charge the battery
  4. External display check: This might sound silly, but you will be shocked by how many people actually forget to turn on their external display. So make sure it’s turned on, correctly connected to your Mac, and it isn’t experiencing any display issues
  5. New RAM check: If you’ve recently tried to upgrade your Mac and added RAM or changed your hard drive, make sure that it’s fully compatible. It’s also a good idea to re-install the old memory or hard drive and check if it solves the issue

3. Perform a power cycle

When you power-cycle a Mac, you force it to restart after killing the power to it for a while. Sometimes this technique works with frozen Macs that don’t respond to brief power button presses.  

  1. For MacBooks with non-removable batteries: Press and hold the Power button for 10 seconds > wait for 10 seconds > restart the Mac as usual
  2. For MacBooks with removable batteries: Shut it down > remove the battery > wait for 10 seconds > reinstall the battery > restart the Mac as usual
  3. For desktop Macs: Unplug the power cord > wait for 10 seconds > plug it back > restart the Mac as usual

4. Reset the SMC firmware

If your MacBook is not turning on, resetting the System Management Controller (SMC) might be a good idea.

 

In order to reset the SMC, do the following:

  1. Shut down the computer
  2. Disconnect everything from the computer but the power
  3. When the computer is off, press the (left side) Shift + Control + Option keys and Power button at the same time. Hold all 4 keys for 10 seconds.
  4. Release all the keys and the power button at the same time
  5. Press the Power button to turn on the computer

 

The SMC reset procedure depends on your Mac model. You may find more information here.

5. Restore from Recovery mode

It’s possible that some problem is affecting your hard drive if your Mac won’t start up. Disk Utility is the first thing to try in such a case.  

 

To run your Mac in the Recovery mode:

  1. Restart your Mac
  2. Press and hold the Command (⌘) + R key combination after the startup chime

 

After you boot your Mac in the Recovery mode, do the following:

1. In the macOS Utilities window, select Disk Utility

click on disk utility option in recovery mode utilities

2. Click the name of your Mac’s hard drive in the list

find your hard drive in disk utility in recovery mode

3. Click the Run or First Aid button

repair volumes, containers and disks with first aid

Now you should be patient until the scan is finished. If no critical issues are indicated, restart your Mac.

 

If the issue is not solved yet, proceed to the next step.

6. Reset the NVRAM

This step may resolve a range of issues with your machine. The Non-Volatile Random Access Memory (NVRAM) is responsible for a variety of functions.

If you experience issues with speaker volume, screen resolution, or startup disk, then the NVRAM reset can solve them.  

 

This is also a basic troubleshooting step if your Mac won't turn on.

Follow these steps to reset NVRAM:

  1. Restart your Mac
  2. Press and hold the Command (⌘) + Option + P + R keys at the same time until the grey screen appears
  3. Hold down these keys until your Mac restarts and you hear the startup chime for the second time
  4. Release all the keys.

 

If you are lucky enough, it will start up. If your MacBook still won’t boot up, don’t give up and try the next solution.

7. Boot up your Mac in safe mode

If your Mac is not turning on, safe boot is one of the things worth trying. The safe mode limits the functionality of your Mac and lets you make certain diagnostics.

 

Here’s how to start your Mac in safe mode:

  1. Shut down your Mac
  2. Wait for a couple of seconds and press the Power button
  3. When you hear the startup chime, hold down the Shift key
  4. Wait until you see the login screen
safe mode startup screen

5. Log in

6. Go the Apple menu in the upper left corner of your screen and choose Restart

 

For more information, check this guide on rebooting your Mac in safe mode.

 

You would be lucky if your Mac starts up as usual after safe boot. However, If it didn’t help, it’s about time to proceed to the last step.

8. Reinstall macOS

Here’s the last thing to try before heading to the Apple Store to repair your Mac that won’t turn on. This will work out if you were able to boot your Mac in the Recovery mode as described above.

 

Before reinstalling macOS, first, you need to transfer your important data. Target disk mode is a perfect solution in this case.  

 

All you need is another Mac and a Thunderbolt or a FireWire cable.

  1. Connect both machines with a cable
  2. Turn on your Mac while holding the T key on your keyboard to boot into target disk mode
  3. Release the T key when the Thunderbolt icon appears.

 

From this moment, a broken Mac starts working as an external drive. You can transfer important files from your Mac and place them on another hard drive.  

 

Now, after your important data is rescued, it’s about time to reinstall macOS in the Recovery mode. This is a time-consuming procedure, so prepare a cup of your favorite drink and stay patient.

 

To reinstall macOS in the Recovery mode, you should have a valid internet connection.

  1. Click the Wi-Fi icon at the top of the screen
  2. Choose your Wi-Fi network
  3. Enter the password
check wifi connection in network settings

Now you can download macOS installer and click Install Mac macOS.  

FAQs

Why is my Mac not starting up?

Your Mac is not starting up for a variety of reasons, and you can track them one by one by running this checklist:

  • Check the power cord
  • Check the wall outlet
  • Check the battery
  • Check the external display
  • Check new RAM compatibility
  • Check new hard drive compatibility

You’ve checked the hardware but Mac not starting up. It means you are dealing with a faulty firmware update, incompatible startup items, or incompatible software. To determine the cause of the issue, look at the Mac screen:

How to turn on a MacBook Pro?

Most MacBook Pros have no power button; instead, they have a Touch ID.

 

You can find this Touch ID (power button) at the top right side of the Touch Bar or function keys (F1 — F12) depending on your MacBook Pro edition.

What to do when a MacBook Pro’s power button isn’t working?

If the power button won't work, you can try one of the methods described above to boot your Mac, and, hopefully, it’ll start up. If not, then you need to pay a visit to your local authorized Apple Store.

What does it mean when a MacBook Pro won’t turn on but is charging?

It can mean a lot of things, as there are five different power states and circuits of a MacBook Pro:

  • Battery circuit: Since your Mac is charging, this circuit is working
  • G3H and S5 circuits: These are the shutdown circuits and you can check them by resetting the SMC. If the SMC reset is working, then the shutdown circuits are working properly
  • S3 circuit: The S3 (sleep circuit) of the S0 (full on circuit) of the motherboard is probably why your Mac won’t turn on

How to fix it? This happens when you spill liquid on your computer, therefore, you might remove the logic board and clean it with 99% isopropanol. However, it’s not recommended to do this unless you are a tech guru, so it’s better to pay a visit to your local Apple store.

 

If you’ve already passed through all suggested steps and had no success, check out how to repair your Mac with the help of Apple technicians. Hopefully, they will find a solution for you. 

 

Read more:

Written By

Ruslana Lishchuk

With over 5 years of supporting Mac users, Ruslana lives and breathes everything Mac. Tech expert, Apple lover, and well, a cutie. Say hi on LinkedIn!

With over 5 years of supporting Mac users, Ruslana lives and breathes everything Mac. Tech expert, Apple lover, and well, a cutie. Say hi on LinkedIn!

Sours: https://mackeeper.com/blog/mac-not-starting-up/


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