I have a quad copter with an APM 2.5 installed on it. Last week I updated from the stock 2.8.* code to the newest (available through mission planner) 2.9.1. Immediately after update, everything seemed fine, though I didn't try to fly it. I disconnected power, installed my gimbal (A11) and camera trigger (A9). When I reapplied power, I wasn't able to connect to it over the 3DR radios, so I tried the USB. Same thing. As a last resort, I tried connecting through USB in terminal mode.
Here is the overall list of symptoms:
Here's what I've tried:
None of that allows me to connect in configuration mode. Does anyone have any suggestions? Is the board just toast?
Is there any general consensus on what's causing the gyros to die? I just threw out anything I could think of that might have been related, but proximity in time doesn't mean causation. I'd like to keep from making the same mistake twice if possible.
Also, on the gimbal front, can we clean up the wiki page on camera gimbals? It shows plugging the gimbal servo directly to A11 and A10, power and signal both. Something that describes possible configurations would be more helpful than just saying "don't plug the servos into the analog outputs" for folks like me that are new to this.
I can change the wiki but I haven't been following this subject very closely so if anyone could PM me the corrected wiki text?