The problem IS NOT the 3.3 regulator, it is the dataflash level shifter

I will resume my problem and the solution:

My board is 2.5.2 (not original) and with firmware 2.9 works fine (or it appears to be but it is in danger).

After trying to update firmware from 2.9 to 3.0 or 3.0.1 the problem is the bad gyro health caused b

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