You try to upgrade, the upgrade will fail but recovery to handle it correctly, you’ll reboot still on 12.2.1 but with a report a problem dialogue informing you of an iBoot Panic.

There is a firmware bug in Mac OS 12.3 that renders the update impossible to install on any 2021 14 or 16 inch MacBook Pro that has had it’s logic board replaced. Others quickly chimed in, reporting the same experience. I restored using Apple Configurator and DFU mode and have tried every possible permutation of updating to the Monterey beta only to receive the same result. This resulted in a boot loop and effectively bricked the computer. So I tried to update to the Monterey beta from within system preferences. When I was restoring my time machine backup, migration assistant advised updating to the Monterey beta since that’s what OS my backup used.Īccepting this prompt within migration assistant restarted the machine but did not complete the update. They replaced nearly everything- from the logic board to the batteries to both cases and fans.

In February, I spilled a full cup of coffee next to it and brought it in for Apple Care repair. Installed the Monterey beta on it at the end of January. I bought a 16-inch M1 Pro MacBook Pro in January. MacRumors spotted the reports on the Apple Developer Forums.

Making things worse, the only assistance Apple Stores are offering is to again replace the logic board, which fails to resolve the problem. Specifically, the issue appears to affect M1 MacBook Pro models which have had their logic board replaced … There are reports of repaired M1 Macs being bricked when attempting the upgrade.

Apple released macOS 12.3 on Monday, but not everyone is succeeding in upgrading.

Macbook pro 13 logic board upgrade