Hi. I was flying my phantom vision and I went out of range, it went into fly home mode and when it was about two thirds of the way home started flying radically. When I picked it up off the ground the shell was destroyed. One of the self tightening props was missing. It hadn't busted off it just wasn't there nowhere around where it bounced off the ground. I had put them on the same way that they do on the videos one finger spun and done so I don't know what happened there but I'll tighten them next time. I bought a new shell, two new speed controllers and four antigravity motors it was costing a bundle anyway. Everything is back together now, the motors are spinning in the right direction, the lights are flashing everything is good, I calibrated everything on the computer. When I take it out to fly it will pick up satellites. But when I take off now no matter what mode i'm in it starts wobbling and it's right back for the ground again. I'm scratching my head now. I was wondering if the GPS was put back in 90° one way or the other to what was originally would that effect the flight. I really don't know what the problem is and I'm into this thing big-time I would appreciate any ideas. Thanks