I have a problem with the video playback as well. I crashed it and fixed the arm, and everything works fine, but the video playback is wobbly. The gimbal seams fine so I'm assuming it's damage to the camera itself. I'm going to do some digging and I'll report back.

I don't know how to get the parts in AU, but I just had the same problem and fixed it. If the motors still rotate, then it shouldn't be too hard (or expensive) to fix. I just replaced the cable, the plastic covering and the rubber dampeners, and it worked. This was the video that was really helpful.

https://youtu.be/fiebNX5f1r8?feature=sha...