"Update: Reading through the manual for the "ABC" leds , I notice that the "A" red light on my unit flashes slowly.
Shouldn't this be solid after a while ?"
"Well had another go, downloaded mission planner 1.2.48 and loaded firmware 2.9.1. I was able to connect to the apm in mission planner and also no errors in terminal during the tests of IMU . Very strange ."
My 3DR APM2.5+ was working fine with 2.91.So i decided to upgrade to 3.0.1 then the "fun" started.I was able to upgrade however I had to do the compassmot calibrationShortly after I could not connect to the apm, it would freeze at the "Get param"…