I have a modified FC40 with a p2 board and fpv. now i am looking to ditch the FC40 camera. I bought a H4-3d gimble and gopro 4 black. while i was at it i bought a new P2v+ remote controller, spare part no.16 and a P2v receiver, spare part no.16. both should be 5.8 i am thinking. my problem is I can't get them to pair. i have checked my connections, i took pics to make sure connections to the naza was the same. Does anyone have any ideas or suggestions? meanwhile, back to problem solving.