Hello all, I recently crashed my P2V+ in the ocean and lost it forever. I have ordered a replacement unit but am left with a leftover controller (with wi-fi range extender) that essentially is useless. I was wondering if there could be any use for it and if you have an opinion on this. If I purchase a non DJI product like a waterproof quad, can the DJI controller be used ? If so, how easy is it to pair the remote and the copter? Your help on this would be appreciated.