Wow I don't Know what to do. I flew yesterday and all was well. To day I flew it and my GPS is 180 degrees off. When I put the little diamond over the center screen the phantom is pointing away from me. It was OK yesterday when I flew, and to day it is off 180. I have not been in side it or changed anything. I did a calibration to try and fix it but still off 180. ? I don't know what to do.?? Can anyone help.?? Thanks.