[dez250]

Even though it seems to work now what you may have done when playing with the buttons on the RC you could have hit a cable or moved a cable to get in there. The serial cables for the radios get damaged very easily and when you get any small damage to those wires, or just letting them sit for some time can cause them to not work. I would recommend to get a new set of serial cables and replace the cables between both the oi and oi radio and RC and RC radio. This is something i recommend not only your team to do but everyone to do, especially in between any 2 events you go to.
Good Luck and hopefully you got it to work before.