Apple provides instructions to erase and restore unresponsive M1 Macs

Apple has released two sets of instructions to perform an erase and restore on an Apple Silicon Mac or MacBook, roughly a week after users encountered issues performing a similar procedure intended for Intel-based Macs.
There are occasions where a Mac may not work properly, to the level that the Mac or MacBook won’t boot up at all, such as if a power cut is performed during an upgrade of macOS. Apple has procedures in place that can enable users to revive the firmware of the Mac, to allow it to boot and function normally.