Whenever I initially use the latest version of Mission Planner, I reflexively "upgrade" the APM 2.5 firmware. It's an instinct I've developed after working with computers for 30+ years to make sure everything is concurrent, and I've done this for the
I Launched MP 1.2.51 and it mentioned there was a new version available, which I upgraded to in the app. I connected to my APM 2.5 via USB and updated the firmware as per usual when a new build of the MP has dropped.
I have APM 2.5, Arducopter 2.9.1 and MP 1.2.38, a quadcopter kit.
I've been trying for 2 months to get my motors to arm. I perform the arming sequence as per the instructions (which I think might be outdated because they don't work), and nothing predi