Error #22 after Firmware Update to 2.6.9

usually I skip updates as long as possible (if the system performs). But this time I was in a risky mood and accepted to update and here it is: M200+ is brain dead.

After the update to 2.6.9 I get #22. I tried to load 2.6.7 again, I get #8 displayed. Back to 2.6.9 #22,
down to 2.6.0 #8,… nothing works anymore.

Any suggestions or magic tricks?

Thank you.


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