MacBook Air M3 won’t power on

Possible causes

These are the areas to be examined in this case:

The cause is confirmed by measurement and actual behaviour, not by similarity to another Mac.

How we diagnose it in the workshop

The diagnosis combines current draw measurement, port comparison and DFU checks. If the sequence is interrupted, the responsible rail is located before replacing modules.

We also check for secondary damage. A faulty input can affect the charging circuit; liquid can reach multiple connectors; and a power loss can leave damage to the file system.

Data depends on the original logic board

On Apple Silicon, storage is integrated and encrypted. Replacing the logic board does not automatically transfer documents, photos or projects. When there is no backup, the strategy should prioritise the original logic board and avoid actions that erase content.

Before restoring firmware, reinstalling or accepting a replacement, consult the Mac data recovery service.

Frequently asked questions