[solentlife]

Sounds the typical ESC arming situation :

Switch of everything.

a) Switch on Tx ... put throttle stick to FULL

b) Connect battery to model ... wait for BEEP - this indicates that ESC has detected FULL throttle position.

c) Bring throttle back to zero.... wait and ESC should beep a few times and then after maybe a few secs give a little music jingle telling you all is OK

I usually now switch all off and then reconnect with throttle at zero. You will hear beeps followed by music jingle ....

You can now control throttle.

IF the above doesn't work ... then REVERSE throttle ... and go through sequence again.

It's not the Tx ... it's the ESC doesn't know the throttle range.

All other controls will work ... rudder / elevator etc. as they are only getting Rx power from ESC not commands.