Hi guys, good morning everybody!
I need help for my first multirotor. I bought a Holybro QAV250 kit with Pixhawk4 mini. I mount all stuffs but i can not arm the motors. QGC ask me safaty switch (not assign in order to use radio gesture : throttle down+right) and GPS error (but i have green light on the GPS that set).
Other issue is related to QCG that can not calibrate esc and battery (battery full but it say battery too low!?) . Someone can help me? 
The safety switch is located on the GPS receiver, press it and you should be able to arm. Make sure your battery settings are correct in QGC.
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