A bit about this problem, I had a crash and sent the unit back to the dealer I purchased from in TO. He had it for 6plus months and could not get a new camera. I go it back and bought camera from DJI and it was here in 3 days. I installed it and it also had a broken landing arm that I replaced, I left the wires that were in the arm and just replaced plastic arm. I started it up and have a signal issue, I removed card and formatted it and installed new bin file from DJI and then upgraded remote, I know the remote upgraded right because of the tutorial. Now I have no signal or weak it reads, I have no camera image. Maybe I done something wrong but I'm not sure, any help would be appreciated. I'm getting really close to just sending it out but hate to get involved with so called dealers like I had. That was a nightmare.Thanks John