PSA: Here is how to repair your M1 Mac should you face reinstallation errors
The brand new M1-powered Macs are incredibly effective but users are reporting errors when attempting to reinstall the OS.
Usually, restoring and reinstalling the OS on the Mac is an easy affair. However, something causes these new M1 Macs to trip up, triggering the above mentioned error throughout the reinstallation process. This error renders the Mac unusable due to there being now no OS as well to.
Fortunately, Apple has published workarounds for this issue. Particularly, there are two fixes. The very first is to produce a bootable installer using another Mac.
The second reason is a 17-step process involving using Terminal in macOS Recovery.
You should check out Apple’s fixes here.
Apple appears to point out this issue occurs there are updated to macOS Big Sur 11..1 however i will tell you that despite updating, I still faced this error.
I’ve not attempted Apple’s fixes so I can not discuss their effectiveness. Things I did do in order to restore M1 Mac is boot it into DFU mode and restore it utilizing a second Mac with Apple Configurator 2.
Booting into DFU mode is hard and needs timing and a few hands acrobatics, however if you simply can take action, the procedure takes only about twenty minutes. You’ll find the steps I required to revive my M1 Mac here.
The issue with this particular fix is it needs a second Mac however i have attempted it and I’m able to confirm it really works.