I have a gimbal problem with my Mavic Pro. The problem seems similar to this and other gimbal malfunctions but in my case I have not had a crash or made any modifications. I had been taking a few vertical photos at about 3 metres height so I could check the precision of the GPS numbers listed with the photos. I landed the drone, went and had lunch and when I came out to start flying again the gimbal just started banging around into the travel stops during the start-up sequence and gave the "overheating motor" warning. Shutting everything down completely and starting again brought about the same reaction from the gimbal. A cracked gimbal ribbon cable seems to be a common cause of this issue so I got a replacement ribbon cable. This settled the gimbal rotation issue - partly, as the 3 axis rotation test works properly on startup but the last stage fails to occur. The last stage seems to be that the camera should snap into a "ready" position, but this does not happen and the camera settles into a downward facing position and does not respond to the remote controller at all. An error message appears on the smartphone screen stating "Gimbal gyroscope error. Hardware malfunction. Contact DJI support for repairs" I can still take photos and video and focus the camera but cannot do anything else with the camera. No panoramas can be taken and any attempt to recalibrate the gimbal completely locks up the the drone, controller and the smartphone. A message appears on the screen stating "calibration complete - do not take off" The only way I can get out of this lockup is to shut down the phone, controller and Mavic. There have been no software or firmware updates for a coupe of years. I can fly the drone without any issues - just cant control the camera at all.