My pv2+ came in the mail yesterday. I have prior experience with my dji hexacopter with naza-m but still consider myself fairly new to quads/hex. The video posted is my 5th flight with the pv2+. Flawless operation until this flight. I had already performed a fail safe test on flight #2 from near by and it worked fine. This time I wanted to see how high (straight above me) it would go until I lost signal. It happened at 1250 feet which was around 2:29 in the video. It then started to return home normally and descend. Around 3:13 you can see minor rocking and then smooth out. At 3:50 all hell breaks loose. It began to wobble/shake/rock uncontrollably. I quickly toggled down then back up on the right switch hoping to regain control and give it some gas to pull out. It did not respond at all, however there was not much time as it was dropping at a considerable rate. I am running it stock WITH dji prop guards. There were 5-10 mph winds at the time. Somehow it survived with no damage as far as I can tell. I fired it back up and did about a 20 foot hover to see if all was okay. It would not hold as good position as before so I brought it back down and recalibrated then it flew perfect for another short 20 foot hover flight. What happened? What put me into that uncontrollable rocking? Prop guards? Wind? Please help.
https://www.youtube.com/watch?v=1M6Y5S8QoD4
https://www.youtube.com/watch?v=1M6Y5S8QoD4