MacBook Air M1:Failed to personalise the software update. Please try again.

Hi.

Thank you for answering

I have unfortunately tried all of this sollutions but the Silent Knight.

This program tells me that everything is up and running.

Tried to google the system firmware version, and that is the same as my macos version.

So, i am stuck. Found a online user that had great luck with this error when he turned Find my mac off.

That did not help either. Some said you have to turn off file vault. Nope.. I have tried 4 times revive/restore with another Mac. Each time I have to wipe my mac to be able to update.

There must be some sollution for this? Is it a hardwaremalfunction?

Update.

Tried to download with the Belkin Ethernet to usb-c adapter but still it complains about internet connection (Failed to personalize.........)

Tried the same from my work. But no good.

It´s a pity that Apple does not come with a solution to this. Makes me wish I bought something else.