Putting an Apple Silicon Mac into DFU mode — key combination and method
The key combination to put an Apple silicon Mac into DFU mode — with reliable timing, the correct port, battery notes, and the restore logs for Revive and Restore.
Category: Apple Silicon
MacBook suddenly stopped working after the update to macOS 26.4.1
Your MacBook won’t boot after the 26.4.1 update. Why a restore fails with error 4042 and how to recover the machine without losing data.
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Signal-line analysis for diagnosing bootloops on Apple Silicon devices
Using a logic analyzer on the management buses (I²C, SPMI)