Freeze after brown out/black out

Question

Freeze after brown out/black out

I have a 2018 MacMini that has been working perfectly until a couple of weeks ago when we suffered a series of power brown outs and blackouts. Ever since then, my MacMini will randomly stop responding and lock up one or more applications (but not at all) including sometimes the finder. Sometimes I can force quit the offending application and continue working but once the finder stops responding, I have to reboot using the power button. Upon reboot, everything is fine for 1-3 days, then it happens again. Any ideas what's happening here and a solution to fix it? Thanks for the help!

Mac mini 2018 or later

Posted on May 5, 2021 2:28 PM

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Answer 1

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Axel Foley

Level 10

150,990 points

May 6, 2021 9:49 AM in response to Russell Talbot

Hopefully you do not live in Texas whereby we had a series of power outages and suffered through blistering cold. In your case, the power outages may have corrupted some software (hard to determine which software) OR even hardware. Corrupted software is more likely the case.

Reset SMC by following the directions applicable to your MacBook here ➔ How to Reset SMC. If that does not solve things then-
Reset NVRAM/PRAM by following the directions applicable to your MacBook here ➔ How to Reset NVRAM/PRAM. If that does not solve things then-
Enter ➔ Safe Mode and see if the computer freezing issue still exists in Safe mode. Log out of Safe Mode and then reboot computer. If that does not solve things then-
Finally if none of the above works then you can enter ➔ macOS Recovery Mode and reinstall the macOS and see if that solves it.

Axel F.

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Freeze after brown out/black out

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