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How to Fix Mac White Screen of Death?

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Fix Mac White Screen

The Mac white screen issue can happen on many Mac models, including MacBook Air, MacBook Pro, iMac, and Mac mini. When booting up your Mac computer, you may find the Mac is not turning on, instead, it shows a white screen at startup. How to fix the issue and what does this scenario mean? This post will answer your questions.

Solutions to fix Mac white screen issue

Solution 1: Disconnect all peripherals

Once you remove all peripherals, it would be easier to identify what stops your Mac from booting up exactly. Therefore, you can start with disconnecting the peripherals as much as you can, including the RAM, external drives, Type-C adapter, and even your keyboard and mouse. Later, you can reconnect each of the devices and reboot your Mac. You can easily noticewhich one is misbehaving.

Solution 2: Boot your Mac into Safe Mode to check

If you have tried the above solution but found no issue with the hardware, perhaps you can think about the software. It’s possible the system fails to work with incompatible software or programs after a macOS update. Or some applications need upgrading to function normally.

To confirm that, Safe Mode can help you out. How? Restart your Mac and hold the Shift key. When the apple logo appears, you can release the Shift key. If you don’t encounter a white screen issue in Safe Mode, then it should be a software issue. How to know which software causes the trouble? Here comes the Verbose Mode.

Fix Mac White Screen

Just Reboot your Mac and hold Command + V key combinations. You can even see a live report when Mac is booting up. If the process stops at some point, you can see which program causes the problem in the report.

Since you have find out the troublemaker, you can just reboot into Safe Mode again and simply remove the incompatible software.

Solution 3: Reset SMC and NVRAM/PRAM of your Mac

SMC is a chip on the logic board that controls all power functions for your computer. NVRAM/PRAM stores things like screen resolution, sound volume, and most importantly, the start-up selection.

Therefore, when Mac has a booting issue, you can reset SMC byholding Control + Option + Shift when rebooting your Mac.Or you can reset the NVRAM/PRAM by shutting down your Mac, then reboot it and immediately press and hold Option, Command, P, and R. Next, you can release the keys in about 20 seconds, when your Mac might appear to restart. When your Mac reboots, you can open System Preferences and adjust any settings that were reset.

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Solution 4: Check and repair startup disk in macOS Recovery mode

When the Mac boots up, it is loading the startup disk. However, if there’s something wrong with the startup disk, for example, the disk is corrupted, your Mac is impossible to turn on successfully. How to rescue the corrupted startup disk? Don’t worry, Apple has a built-in tool, Disk Utility, to solve this issue. Here’s what you can do:

Step 1: Shutdown your Mac by force and hold Command + R to start your Mac into macOS Recovery mode. Then you can select Disk Utility from macOS Utilities window and click Continue.

Fix Mac White Screen

Step 2: Click on View and choose Show All Devices to list all detected disks and volumes.

Step 3: Select startup drive (Macintosh HD) in the left sidebar.

Step 4: Click First Aid on the top menu of Disk Utility.

Step 5: Click Run to check and repair errors.

When Disk Utility reports operation successful or the error has been repaired, you’re done. Check if you can turn on the Mac successfully.

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