You need to go to the setup menus on your controller and set the options as below
When youre happy its set correctly you need to highlight the [Bnd] icon and press in the joystick to activate bind.
Then If you can get to the bind button hold it down as you plug in the usb cable. This should put the receiver in bind mode. After a few seconds you should get flashing green led on receiver. Then you can power off the quad and the controller and then power back up. There should be a solid green light on the receiver to confirm its bound