Updating to macOS 11.3 has bricked my M1 MacBook Air, it continually reboots and only gets as far as showing the Apple logo. Apple Configurator is unable to revive or restore, failing with "Failed to restore device in recovery mode, libusbrestore error:21 [com.apple.MobileDevice.MobileRestore – 0x15 (21)]". Has anyone else had this issue?
I had to revive the firmware before applying the 11.2 update as well. Firmware or hardware issue?
I had to revive the firmware before applying the 11.2 update as well. Firmware or hardware issue?