Everything was working up until the point I decided to reroute the power to the video tx. Not sure how/why the hell I did it, but I had a bonehead moment and soldered in the power/ground to the vtx in backwards and powered up. I then quickly realized my mistake, shut everything down and fixed it. However, I am no longer receiving video. I disconnected everything and tested the vtx and camera out of the iOSD/vmu loop and they seem to be working just fine. It's not until I wire the iOSD between the vtx and camera that I no longer receive video. I can't figure out why the mistake would take out the iOSD or VMU, but maybe someone can shed some light?