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MacBook Air won; turn on

MacBook Air won't turn on.


I tried Holding shift-control-option for 7 seconds, then hold power button and hold all 4 for 10 seconds, then after a few seconds press the power key. power cord shows green light.


Posted on Feb 7, 2020 7:25 AM

Reply
2 replies

Feb 7, 2020 7:31 AM in response to ILoveToQuilt5645

Try an SMC reset:

How to reset the System Management Controller (SMC) on your Mac - Apple Support


Try starting up in Safe Mode:

Use safe mode to isolate issues with your Mac - Apple Support


If neither of those work boot into Recovery and Reinstall Mac OS.

About macOS Recovery - Apple Support


Try Single User Mode (hold command-s keys)

At the prompt, enter this command:

/sbin/fsck -fy

Press the Return key.

This will check your directory and report that it was OK or repaired. Then enter this command to startup normally:

reboot


Run Apple Diagnostics  

Press and hold the d key on startup:

https://support.apple.com/en-us/HT202731


If none of those work make a Genius Bar appointment for a free diagnostic:

Genius Bar Reservation and Apple Support Options - Apple


MacBook Air won; turn on

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