How to Fix “Dead MacBook Pro” Or “MacBook Pro Not Turning On”?

Make sure that your MacBook is connected to a power source. Changing the charger or power cable, or switching to a different power outlet, may help. It’s possible that the charger has been tampered with. If your MacBook’s battery is fully dead, you may need to wait a few moments before turning it on after connecting it in. It may or may not start up immediately once you plug it in.

When you’re sure your Mac is powered up, try turning it on with the power button. Are you able to hear the fans or any other sounds? If you answered yes, it’s possible that your Mac’s issue is due to software.
If your Mac refuses to boot at all, there could be a hardware issue. If your MacBook Pro or MacBook Air won’t switch on in either situation, detach all keyboards, mouse, external hard drives, and other peripherals to ensure they aren’t the source of the problem. If nothing has changed, a power cycle is required.

If your Mac is stuck in a frozen state and won’t respond to power button presses, you can force it to restart by removing the power to it. Press and hold the Power button for ten seconds on a modern MacBook without a detachable battery. If your Mac is already turned on, this will shut it down and force it to restart.
Unplug the power cable from your Mac desktop (iMac, Mac Mini, or Mac Pro), wait 10 seconds, then plug it back in. Finally, if your Mac has a replaceable battery, turn it off, unplug it, remove the battery, wait ten seconds, then replace it.

It’s possible that your display is causing you problems in some circumstances. Of course, checking all of the cords (if you’re on a desktop) for appropriate connection should be your first step, but there could be a malfunction with the battery power circuit that won’t trigger the screen light for some reason.
Your MacBook’s black screen, on the other hand, is still functional. Holding your MacBook up to a bright window and allowing sunlight to pass through the back of your screen is one way to solve the problem, especially if your MacBook won’t turn on this way. You should be able to see enough to log in this way, and your screen should then switch on normally.

Resetting the SMC (System Management Controller) can typically resolve difficulties with the battery, power, and fan, as well as several other aspects. If you’re still having trouble turning on your MacBook Pro or your Apple notebook appears to be stalled at the Apple logo, you should try this option.
To get started, plug in the power cable, then simultaneously press the Shift + Ctrl + Option/Alt keys and the power button for at least 10-12 seconds. To restart your MacBook, release all of the keys and then push the power button. If there was a minor power or battery issue that was keeping your device from booting up, it should be rectified now, and your MacBook should start up normally.

Resetting the PRAM/NVRAM is another proven solution for resolving a dead MacBook Pro or an ill-functioning MacBook Pro that won’t switch on. NVRAM (Non-volatile Random-Access Memory) and PRAM (Parameter RAM) are sections in the device’s memory that hold data such as volume settings, startup disc selection, screen resolution, and even kernel panic information for those unfamiliar with the words. Frequently, resetting them resolves a variety of minor issues that may be keeping your device from booting up.
To get started, press and hold the Command, Option (Alt), P, and R keys at the same time while turning on the device. Keep the keys pressed down until the MacBook restarts. Allow it to restart twice if possible. Then, all at once, release the keys. If the problem was with the NVRAM/PRAM, your MacBook should now restart normally.

If your MacBook isn’t fully dead but is stuck on a white, blue, or grey screen, follow the steps below to use Disk Utility to correct any problems with your hard drive that may be stopping it from booting up properly.
To access the 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.