it is working with 12.3.1
chrstation
Users receive reputation points by contributing quality content to the forums.
Posts include post and replies published on the forums.
Post authors can mark replies as Accepted to indicate successful solutions.
Apple Developer Forums admins can mark replies as Apple Recommended to indicate an approved solution
Post
Replies
Boosts
Views
Activity
Same here, mine was brand new, no logic board replacement.
12.3 was not a beta, It was downloaded automatically by apple and I just accepted the installation, during the installation it showed an error "iBoot panic" installation failed, so I tried again and that bricked my laptop, I tried revive with apple configurator 2 and DFU mode several times and it failed, went to the store and they replaced the logic board with a new one that came with 12.1, I tried to upgrade again and after seeing the same iBoot Panic error I freaked!! so I restored the system and obviously I didn't try again it would brick the laptop again, now and I am waiting for a solution, this is stupid...