Phantom 3 pro unstable flight. I took it to the park and flew two perfect flights. But this morning I tried to fly it in my neighborhood, It had 17 satellites and compass calibration showed successful, but when I took off if acted like it had a mind on it's own and headed for my neighbors house. I corrected the the flight and it again headed towards the house again. I pulled the throttle down to stop it and it landed and then tried to take off again and flipped over and skinned up the props before I could turn off the motors. What the hell caused this. I have the latest firmware. 1.2.6 There's some high voltage lines about a 1/2 a mile from my house, could those be the problem?