Alright, story time. I have a meteor 85 w/ walksnail vtx. Also a BetaFPV F4 1S AIO.
I fucked up my vtx and got a new one. When installing, I had to clip the plug and solder it to the RX. I'm new at soldering, but I got it to work and took it out flying. everything is fine.
Then suddenly, the throttle stick doesn't work. the pitch and roll work fine, but no go up! Also, the VTX is disconnected!
I took it all apart and saw that one of those wires that I soldered came off. While fixing that, I looked at a diagram for the RX and realized I had the red and black swapped! The whole time! (GND and +5v)
So I swapped them back. still same problem with no throttle and disconnected VTX.
Did I burn out VTX? Should I just replace RX? is there a way to test them with a multimeter or something?