X4 with FY-91Q. ESCs were calibrated individually for throttle. I tried an AR7000 with X9303. Got a fast beep after connecting power. Reversed throttle servo... No change. Powered radio and Rx down and turned it back on. Now throttle was reversed. Put it back to normal and motors 1,2 & 3 worked. #4 dead.
Durning this the AR7000 would loose connection with the Tx. Changed to AR500. No change. Some times it binds with Tx. Sometimes it doesn't. Now it just beeps. No throttle response at all.
When the AR7000 was reconnected the Flight mode switch worked with the correct blue light for each mode after wiggling the wires connected to the FY-91Q. Have throttle for all but # 4. But the beeping continues.
FY-91Q dip setting: 1,2, 4 off, 3 On
