"If you are having problems with  v3.2.1 on APM 2.x hardware and your multirotor is unstable and won't sit still but worked fine with v3.1.5 or v3.2, try changing the parameter INS_MPU6K_FILTER to 20 or 42 rather than the default of 0. The value of…"

"@Ken Costigan are those ESC to motor bullet connectors bare like it looks in the photo, or are they covered some something like clear heatshrink that you just can't see? If there is bare metal then that's what's causing the crashes!!
During…"

"I've been using the APM 2.5 controllers that come on the Cheerson Cx-20 and the Quanum Nova, and a Pixhawk on a hexacopter 550 build and never had issues with GPS lock or low satellite counts, yet hear all the time about GPS issues in the various…"