Q: I have a 7168.6 adapter cable that is not communicating with my Graupner receiver's . Is one cable designed to communicate with both receivers and transmitters or a different cable required for receivers vs transmitters ? If a special cable for receivers is required please ship one to me ASAP.
A: The 7168.6 adapter requires the 7168.S adapter cable. That cable will only update receivers, ESC's and telemetry modules.
To update transmitters, you need a standard USB cable.