My connection between my I-phone and my Mavic pro platinum is sketchy at the best - sometimes the controller is connected but the I-phone is not connected - ie: no video or info on phone when I try to connect it to the Pro through DJI GO 4 - wiggle the phone around seems to help - could the cable between the controller and phone be the problem or does the I-phone connect through wifi or bluetooth to the PRO or is it a function of the cable to the controller - newby - tnx