i've got the whole micro apm set (http://www.hobbyking.com/hobbyking/s...3Mhz_APM_.html)

the board comes with internal compass, and there is external one in the GPS.
To disable the internal you cut a track on the board, which I did.

I'm connecting only the USB and the external compass to do the calibration to exclude problems from the other devices.

Still I get "not enough data points to calibrate the compass" every single time!
I do the calibration like on the video and then rotate around all axes as well.

At this point I have no idea what else I should try, so please help! :(

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