Failsafes didnt save my Buddy Or Myself......


You have Two radios. FM AND 2.Ghz. SAME sort of Failure with BOTH. You say the Batteries are not the Issue......

That Leaves the WIRING(which includes the Connectors and switch),
the ANTENNA (which, contrary to popular belief, should be Straight and Upright with 2.4 GHz Gear),
or the Throttle Servo.

Check the wiring with a DMM (OHM Meter) if you have one. Wiggle n Pull on the wires as you Measure,,,, the connection may be Intermittant at ANY point on the wire or connector. It may be an intermittant OPEN wire, OR, an intermittant short to Chassis Ground, OR a short between cables(worn insulation).

A Brand new Radio (with new rcvr) should be OK, BUT, open the rcvr and visually check the antenna connection to be SURE. And mount the Antenna Properly....

The Suspect Servo is easily eliminated by installing the New one that came with the Radio.

And dont Complicate Matters by installing a Failsafe until AFTER you solve the problem....NEVER complicate a troubleshooting problem by introducing another Variable......

You should solve the Problem if you follow those steps......Good Luck....