I am installing a new Align BL35P in a new Trex 450 DFC. I have several previous BL35A's and have always been able to enter the setup mode at full throttle. This one will not recognize the setup entry.

Using a DX18, BL35P, BeastX AR7200 and Scorpion HK-2221-8 motor.

It loads with the default modes and only indicates 5 not six modes, but seems to fly fine. But that said, I cannot change anything.

Are there any issues with the DX 18 or BeastX AR7200 interfaces?

Any suggestions would be appreciated.