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.
Apple Silicon
This section describes specific things focused on Apple Silicon platrofm. these are machines from M1 series
Apple silicon Macs inherit from iphone/ipad platform. there are many similarities and repair techniques which could be adopted from the iPhone repair community.
Apple introduced M1 machines in the year 2020. Generally, the M1 platform has very few similarities with the classical PC Intel platform. However, since the T2 platform was somewhat of a bridge to Apple’s own platform, there are lots of well-known parts from T2 circuits moved to the new platform (like Display/Backlight, SSD, trackpad and keyboard operation, battery charging controller, and many other things).
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.
Signal-line analysis for diagnosing bootloops on Apple Silicon devices
Using a logic analyzer on the management buses (I²C, SPMI)