In this video, I discover that my quadcopter has a failing gyro chip. I walk through the process of this discovery using Blackbox and flight video. You can see the logical process that leads to the conclusion, and why I come to this conclusion vs. other causes that might result in similar symptoms.
Because I know y'all are going to ask, the flight control board is an Xracer F303. I still believe in this board, as I have not heard of any other reports that they are failing in the field. This board was flying for a while with two broken standoffs, so it was subject to much higher vibration than usual. I think this may have contributed to it failing.