Pattern to record: Power is present but the Mac remains black or repeatedly enters recovery behaviour.

Use the correct Mac power design

MacBook Pro charging requirements vary by model and workload. Compare the supported adapter and cable with the installed configuration, and note whether the problem is confined to one charging port or appears on every supported path. Startup firmware is incomplete or corrupted and normal boot cannot begin.

Power and data precautions

Stop high-load testing if the charger connection or board area becomes unusually hot. A restore can erase data, so the selected recovery action must be understood first.

Model-specific checks

1. Compare supported ports, charger profiles, battery condition and board current behaviour.
2. Identify the Mac generation and follow its documented recovery procedure after confirming stable power; revive/restore procedures apply only to supported Apple-silicon or T2 models.

Repair and startup verification

If the checks support this cause, use the supported recovery action for that model, distinguishing a data-preserving revive from an erasing restore where those options exist. Verification should cover all charging ports, full-power operation, battery transition, sleep and shutdown.

Reference: Apple support guidance.

For an assessment of your Apple-silicon MacBook Pro, contact AEPC in Burswood or call 027 908 8880. Provide the model and the conditions that reproduce this problem. Workshop visits are by appointment.