don't like this dx3 that came with dbxl e 2.0.Two many buttons doing multi functions.Like my dx5c with info screen,easy to use and informative in 5t 2.0,cant remember but I think reciever is sr315 or sr515 non avc.Can I duplicate this for dbxl e 2.0 ,are they still available. Any adice appriciated.Followed directions to turn off avc but reciever not flashing 3 times at power up like directions indicate.