Thank you for the hint!
– we’ve followed instructions as mentioned in the video.
– we’ve installed the new firmware
Now everything is working in test mode / application (drone, motors, transmitter).
Still… the ARM-switch does NOT function. When turning the switch, the motors do not start running. When using my other drone, the transmitter is working just fine.
A hint on this issue would be very much appreciated! Thnx!
Best, M