Let go of the Shift key when you see the login window (NOTE: If you have FileVault enabled you may need to log in twice). Immediately press the Shift key and keep it down. Hold down the power button untill the machine turns off, hold down command q, choose shut down from the apple menu whetever you have to do to shut down the computer so the new owner can press the power button and set up the machine like it was 'factory new'. Copy and paste the following command in your Terminal window: log show -predicate eventMessage contains Previous shutdown cause -last 24h The 24h. The 0 shutdown code resides in a liminal space between the hardware and the user it signifies a sudden loss of power which can either be caused by a hardware failure or user action (if you want to demonstrate this for yourself, try popping the battery out of an old MacBook or MacBook Pro while it's on and unplugged, or pulling the power cord. To check this, connect an external display to your MacBook. I’ve seen in the guides that replacing the thermal paste is a fairly long procedure, but if you think it might be the problem I would try that first. Follow these steps to boot your Mac into Safe Mode: Fully shut down your MBP. The Pink Screen issue might be caused due to a faulty graphics card or display screen malfunction. From comments there are two things to be addressed. The command has to be run as root so you need to use sudo. On an Intel Mac, boot the Mac and hold a key like Shift, Command+R, Option, D, Command+S, T, or other keys to access a variety of boot options. Thermal paste on the processor/heatsink? (The Air doesn’t get really hot.)Īt this point I’d like to try to fix it without replacing much, due to cost. The command takes a parameter -h, -r or -s to shut down, restart or sleep the Mac. On a modern Mac with a chip like the M1 or M2, power off the Mac and then hold down the power button until you see a message saying startup options are loading. after 15-20 minutes.Ģ) used the Air with the battery unplugged it seemed to fix the problem, so I bought a new battery, which works fine, but the sudden shutdown problem has reappeared.Ĥ) removed the internal SSD and started the Air from an external disk. This allows the MacBook to cool down faster and allows you to keep using TouchID, webcam and the very nice speakers of the MacBook, while being able to focus on the external monitor. After the first shutdown like this, the second usually comes faster, e.g. Lunar can turn off the MacBook display without having to close the lid of the MacBook. To restart it, I have to wait a few minutes, or unplug the Magsafe and then plug it back into the computer, at which point it starts up. It might work fine for a few hours, then the display goes black and it’s shut down. For a couple weeks the Macbook Air has been shutting down suddenly.
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