Hey guys,
Slinger, open your camera casing, make sure both antennas are plugged in, I opened one of mine the other night, having issues with it, both antennas were unplugged? I plugged them in ( silicone on them ) and she working fine again , but was more range than anything.
Next
From being in these SO much, I found the bottom board on the stack, is the receiver/transmitter board! Now that being said, hypothetically, maybe it is receiving commands, but unable to transmit? On this note, if you remove this board ( very bottom board on stack ) From the metal housing ( camera frame ) it has an ICU chip with thermal paste on it!
I had to change one once, due to solder but won't mention any names
@dirkclod , lol

, but when I put back together it over heated and lost feed, I took it apart, put new ( Arctic Blue thermal paste, reassembled, and was fine! Again, maybe something different? Maybe the same? I would love to dig into that camera, to finally put this FPV loss to rest! Happening TOO much! If you cannot get it fixed, I have several spare fc200 cameras, TRUST ME! You are welcome to one, as you been a LONG time friend to me and other mutual friends here!, so a trade! Your broken camera for my working camera ( if you cannot get it worked out? And if you want to, I'll send first! ) or, I have a spare bottom board, I can send if you want to try to change them out! ( again, do not know if that IS the issue, just sounds too familiar! )
Most had this problem after app update! But not the case here right?
Lastly,
Is your fan working on top of fc200?
J Dot
Hope this helps, just my 2 cents, but you never know! New camera will have a Mac addy as well, I will tape it to the top! Let me know, ALWAYS glad to help! Pm your info if you want to try a new board or whatever!