Unable to arm firmware 3.0

Thought I try the latest firmware on my Quad.  I downloaded firmware 3.0.0-rc6 and loaded.  When I try to arm both from mission planner or from my radio, nothing happens.  I erased my APM and then loaded the new firmware, calibrated my radio and leveled the copter.  Is there something new and special that would keep me from arming?


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  • Hey Richard. Maybe I can help you for a change. I had the same "problem" with 3.0 when I loaded it last weekend. This is copied from Randy's latest post on the 3.0 "release".

    • pre-arm checks to ensure all calibration has been performed before arming (can be disabled by setting ARMING_CHECK to zero).  (video description here)

    I ended up disabling the pre-arm checks because my compass offsets are huge (400-500 range). I'm still working to figure that one out myself, but I wanted to get er in the air. I think you need to figure out what pre-arm check you are failing.


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