imu calibration. unknown error at 2%

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    IMU Calibration. Unknown error at 2%

    Hi all As many others I've got IMU Calibration issues. The problem is that when I start the calibration on the 2% it's telling me "Unknown Error". I've tried to cool it down as much as possible(put it in my working shed whit all the electrical equipment around plugged of the sockets(no...