Well I had my first crash yesterday at my Dads farm flying my standard yesterday.Luckily she never crashed hard and there is no apparent damage.It was over 5000 ft out over farm land for a bit then brought her back within eyesight 1600 ft range and started to get Strong Interference Detected multiple times.The closest thing metal was a steel barn about 125 feet behind me. Be careful when flying long distances and RTH: Heading alignment warnings.Hardly no warning when it was over 5000' all the warning started at 3000' and under..Later the drone started a downward Spinning Spiral and during this downward plunge I had no control whatsoever.The props were still spinning since it never fell straight down like a rock,not sure if a motor overheated,maybe one motor overheated and quit.Would that cause the downward spiral.I dont think it would fly with just 3 props spinning.I was lucky where it came to rest.On the edge of a bush the video shows it scraped some big tall maple tree leaves and I found it upside down on some tall 3 ft high grass and weeds.No body damage to drone or props or prop guards.I flew it later for a couple min close to the ground to test it quick with a fresh battery and all props spin ok since it was getting dark out.The only thing I did this flight that was different was a couple days ago I rolled the firmware back from the latest down to P3C_FW_V01.07.0090 to try it out since I herd people say it worked better than the latest up to date firmware.Shiite,now I am thinking if maybe it was the older firmware that caused this.Anyone have any ?Ideas? on my Downward Spiral.