I'm getting a Gimbal calibration error code 1D020001.  How do I fix this error?  Drone was crashed and the gimbal was repaired.  Roll arm, signal cable and pitch motor were replaced.  It did not have Dji coverage.

Hello, there. Sorry for the inconvenience. If the error message pops up, please try to perform gimbal calibration.
If this does not resolve the issue, please send the gimbal back for further diagnosis.
Here is the link:https://repair.dji.com/repair/index