For some reason I lost control over the quad, at about 2:14 I start to turn right but then it starts turning left by itself and starts flying backwards until it crashes... took about one hour to find it again.
How far was it from you? How Close to the wind generators were you (they are full of electrical noise that could do that). Battery power level? quad and transmitter (oh, and was your antenna pointed correctly)
I was about 200m away, have been further away before and after this. The generators were about 50 meters away, battery level was fine, antennas to, if I had lost reception it should have failed over to Return To Home mode. I had another chrash a couple of weeks after this- I rebuilt the quad after the second crash, reconnected every cable and moved the GPS a bit and after that I haven't had any problems.
GPS antennas are real sensitive to electrical noise......bet you have solved your problem just by the better placement of the GPS antenna
