Gimbal unable to calibrate after hard landing

[Shelbz]

My P3S made a hard landing which didn't affect flight or do any damage but since then the gimbal will not claibrate. The ribbon cable looks to be fine.

Any advice?

 

[With The Birds]

There is an obvious issue with the yaw arm setting its position, likely a sensor issue or some form of binding/misalignment of the arm/shaft. Depending on the severity of the crash you may have broken the sensor board. Less likely but worthy of investigation are the ribbon cable and connectors between gimble and AC.

 

[Shelbz]

I checked the cable and connectors, all is fine there.