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Level 1

4 points

MacBook Air M1 booting diagnostic only

Every time when I switch on my MacBook Air M1 diagnostic opens. I choose language and is waiting for session. Nothing happens. In a bottom left corner displays “ serial number not se.t. Any idea what can be wrong with it ?

Posted on Apr 20, 2022 8:12 AM

Top-ranking reply

Smilin-Brian

Level 9

56,685 points

Posted on Apr 20, 2022 8:20 AM

Try the following:

Click ▶︎ Mac Startup Options.

Click ▶︎ Mac Startup Methods.

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MacBook Air M1 booting diagnostic only

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