iFixit documents battery, screen and USB-C port replacement. A new screen may lack sensors or magnets and need calibration to restore display functions.
What to check before buying
Display parts
The M5 screen guide warns that some panels omit ambient-light sensors, magnets or the microphone. It calls for fresh screen adhesive and points to Repair Assistant calibration if True Tone or auto-brightness stops working.
Battery and connector
The battery guide calls for new battery and screen adhesives. The USB-C charging-port guide also specifies adhesive for the port and screen; a charging complaint should be checked against a cable and debris before pricing that repair.