Hi there, thanks for reply, I have the p3 advanced. I noticed the movement after a old sd card that went bad(Sandisk ultra) and I lost feed. Before checking I noticed the ribbon had moved. I took this picture before pushing in, however I don't think it had come out of socket. More like you said, there is movement for gimbal.
The sd card I then checked, which was bad and would not format. I have since changed for a Sandisk extreme pro. I think all is good. Connections look good. I was concerned as I have only had the drone a few months and flown only a few times.
I think ribbon is like you said, for movement. Will see if it moves and take a pic after next flight. And think the sd card I had was no good also.
Jason