If you’re thinking of upgrading your MacBook or iMac to the just released macOS Monterey (also known as macOS 12) from Apple, hold back for now as a growing number of users are complaining about bricked Mac computers after the update .
As reported by MacRumors, a significant number of users in the Apple Support Communities are finding that their Macs were turned off during the macOS Monterey update process and did not restart afterwards.
User reports suggest that the problem only occurs on Intel-based Macs, which means any computers that are not powered by Apple silicon are at risk.
The macOS Monterey update issue follows a similar issue that occurred last year that affected users upgrading to macOS Big Sur.
How to fix a bricked Mac
As with any serious Mac problem of this nature, taking your brick-built MacBook, iMac, or Mac mini to the Genius Bar in your nearest Apple Store is often the best option.
However, if you’d like to troubleshoot a little yourself, refer to a user In the Apple Support Communities, they managed to successfully revive a bricked Intel-based Mac by using another running Mac that was already running the updated operating system.
The process involves running Apple configurator 2 and use this to update the firmware on the T2 security chip on the bricked Intel-based Mac. Since most people probably don’t have a second updated Mac on hand, the staff at Apple’s Genius Bar can do it for you.
A strong word of warning is also in order because if the resuscitation process is unsuccessful, you may need to use Apple Configurator 2 to restore your Mac, which unfortunately will erase your internal flash memory.
We recommend that you make sure you’ve backed up your Mac to an external drive using Time Machine before trying the macOS Monterey update.
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