An Update:
Today I got an original brand new flex cable from KachemakDiver and installed it on my P3S gimbal. I was expecting the gimbal to snap back to life but it just hung there limp just as before. And like before, I had video feed. So it appears I have more of a problem, than just my gimbal flex cable as this is the second replacement and nothing has changed. I get a "Gimbal Gyroscope error" just like before.
I'm not sure what my next step would be, but I do know that I do not want to put much more money into a 4 year old P3S.
In retrospect, other things point to something more than just the gimbal cable as there was a gradual failure in whatever component has failed. The original gimbal cable I replaced had no sign of any damage. Thinking back I started having problems in late July/early August when I noticed wobble through the camera on one of my flights.
If anyone has any ideas feel free to post them here.
Thanks,
Chris