I feel your pain. Same thing happened to me twice. First time I got GPS back and got control. Second time I didn't and it hit the treetops. Got it back, damaged, and sent it in for repair. The consensus seems to be that we really need to calibrate the compass whenever you change locations. GPS needs good compass to work right. But it's a problem. There are lots of reports of these "flyaways"... all with the same indications. DjI doesn't really address them other than to say, "Interference". I think they need to address this problem immediately. We bought it for it's GPS based stability. Easy to fly. Comes home. Then it dumps GPS and takes off like a bat out of hell. Call the company and complain. See what happens.
