Originally Posted by
Panther6834
As I haven't yet installed the latest NB4 firmware, I can't claim to be 100% accurate...but, I'm suspecting that, with the most recent NB4 firmware, FlySky might have done the same thing they did with the Pro firmware. With the newest Pro firmware, they've figured out a way to make non-FlySky receivers no longer pair to the Pro. If my assumption is correct, they probably did the same thing with the new NB4 firmware.
It has Infact been confirmed that this situation applies to both the NB4 and the NB4 Pro. There is a fix and that is to bind aftermarket RX in "1 way" mode. This may or may not fix the problem for those that prefer the telemetry capability and have now lost it when binding in that mode. Also, not sure if this fix applies to EVO receivers.