100's of flights. Zero crashes, now I had a major crash - NOT human error! This sounds like the same story as fly-aways, except mine "flew away" into the ground. About a week ago, I upgraded the board, made sure it has the latest firmware, and have had about 16 successful flights with the upgrade. Then over the weekend, I had one successful flight, brought it back and changed batteries for flight number two. I waited for warmup, GPS lock, and took off in GPS mode. I flew about 30 feet high and 50 feet away. When it hovered, it drifted quite a bit which surprised me. Then, the green GPS light gave me one yellow flash. I knew something had to be wrong. It then gave green flashes again, but because something had to be wrong, I decided to bring it back home. 5 seconds later, it wobbled bad, tipped on its side and dove hard onto a wooden deck. Smashed GoPro lens, ripped gimbal off, cracked the shell. Everything inside seems fine, except, it's like the GPS module is not plugged in MOST OF THE TIME. When I power cycle the Phantom, about 10% of the time it knows the GPS exists, sometimes it does not. When it does, sometimes it only sees it for a few seconds, sometimes for a few minutes. It's just intermittent. I've ordered a replacement board, thinking that is the problem, but I'm not sure. It appears to either be that, or the GPS.