Most cases of erratic behavior and unwanted bias in the ST10 Hardware Monitor are caused by contamination, corrosion or wear in the affected controllers themselves. But not always. If you replace your flight control board, or if the board gets out of calibration for any reason, it will show up as problems in the Hardware Monitor (and in flight) that will appear similar to the more common issues. I could not find a write up on how to actually calibrate and ST10 (or ST10+) flight control board, so the following PDF was developed and is posted here for anyone that may need it someday.
Update 2019-03-25: Strengthened the cautionary paragraph on page 1 to include the reason WHY you do not want to use this process for inappropriate conditions.
Update 2019-03-25: Strengthened the cautionary paragraph on page 1 to include the reason WHY you do not want to use this process for inappropriate conditions.
