hi,
MC= A2
Gimbal and flight controls are updated to the latest version.
I've used the SD memory card.
Gimbal newly purchased,After installation, this problem became apparent.
What's the problem?

I've already bought Gimbal zenmuse z15 nex7, the GCU it breaks.
I had to send  the GCU  to China (DJI) for repair.

Do not know the cause of this problem company experts DJI ?
Or whether they not have reluctant to answer ?

1. have you connect GCU's CAN port to A2 ? Otherwise you can change another CAN cable in case of cable breakage.
2. Try Calibrate A2 IMU
3. Does gimbal is well-fixed to drone?