After the macOS 12.3 update, do not upgrade the Mac with the motherboard changed, it will be 'paralyzed'!

The latest macOS Monterey 12.3 update, released to the public this week, has “crippled” M1 Macs that had had their logic boards replaced, causing customers to panic and be unable to restore their Macs to a new level, according to some user reports posted on social media. working status.

It is understood that Apple released the official version of macOS Monterey 12.3 this week, bringing new features for universal control to users. Sadly, not all users will experience universal controls or the latest features. Sadly, not all users will be able to experience ‌Universal Controls‌ or the latest updates.

As stated in a post on Apple Forums, users trying to update a Mac from macOS 12.2.1 or earlier to macOS 12.3 will encounter bugs, endless reboot loops, and possibly even a completely bricked Mac. Reports are limited to Macs with motherboard replacements, specifically the new 14-inch and 16-inch MacBook Pros.

Therefore, it is recommended that if the user’s Mac is a 2021 14-inch or 16-inch MacBook Pro, and the motherboard has been replaced, it is best not to upgrade to macOS Monterey 12.3. macOS Monterey 12.3 was released last week, and if your Mac has had its motherboard replaced, and it’s a 2021 14-inch or 16-inch MacBook Pro, the upgrade will brick your Mac and cause all kinds of bugs. Either way, you will face two outcomes, either the Mac is completely bricked and unusable, or the Mac completes the update process and restarts, but the system does not upgrade successfully, and an iBoot Panic error message is displayed.

Of course, the bug is still unresolved and will go into an endless reboot loop. If the user tries to upgrade, the upgrade fails, but resumes normal processing and restarts. The only way to get it working again is to manually download the 12.2.1 IPSW and use Apple Configurator 2, put the Mac in DFU mode, and load the recovery image. This will update the iBoot’s firmware and update the recovery image to a working version. The Mac will then restore the operating system to 12.2.1, preserving user data when complete.