I have flowed my P3P numerous times without any issues and I know that I read the manual over and over, watched tutorials and tried to get as much information as I could before I received it. After numerous flights I had got a IMU error, the first time I just recycled everything off and back on and flew it around easily because it hadn't done that before, so,after a few more flight it popped up again and decide I needed to do the IMU calibration, I did go into the status for IMU check and it did fail. Completed the IMU calibration and all of sudden I realized that the next time I flew and since then that it goes into the warm up stage for about a minute or so ( yellow led flashing) like it should. I thought before this it did it's warm up and was just quick. So I guess for FYI it may be a good idea to do a IMU calibration right out of the box which kind of makes sense to me. Has anyone ever noticed this?