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-2100F Error when powering on

My elderly neighbour has handed me a macbook to fix.

When i power up, a screen comes up with an exclamation in a triangle, followed by apple.com/support, followed by -2100F.


Any ideas how to get past this?


The macbook itself is not on my wi-fi network.


Thank you!

MacBook

Posted on Jan 22, 2021 9:22 AM

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Posted on Jan 24, 2021 4:24 AM

This article pertains to the ! mark at startup and what actions to take.

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-2100F Error when powering on

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