Thank you for pointing out that receiver needs 5v supply. I found a dedecated cable for that and tried again but still the same result. An inversion, how can i know if that is the problem? Is there a detailed debug log of the communication you can access from pc?. Are you sure its not a firmware issue? I read other threads where the fix is mess around with bootloader see link below. (But i dont have a safety switch) other state it is current firmware bug) what do you think? Or could it simple be that this receiver is not tested with px4 og perhaps therefore is not supported eventhrough it is stated in doc.
