Just getting started again after many years of down time. RC has come a long way an I hope for a great time. I'm working on TREX 450 Clone an just received my radio . FLYSKY 9X. Im having trouble with the servos. the L AIL an RUD dose not move. but the R AIL just keeps moving back an forth (ch 6). If I plug The L AIL Or The Rud into CH 6 They do the same . CH ! dosn't seem to work. Any Ideas I would appreciate it. Forgot to mention servos are exi 213F. Don't know if new came with the helicopter.( USED) Glad to be here..