The APM board works when it's plugged into the USB, but not when it's powered by the RC rail (ESC/Lipo)

All ok. The jumper it is solder. But don't work.

Thank. Any ideas?

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Gps broken, Ardupilotmega 2

I had an accident with multicopter and GPS antenna has unsoldered.
The soldier the GPS antena but I can not detect satellites. What I can do?

Thanks

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Problem with mavling

I have a problem when I connect the usb stops working the servo of the helicopter and I can not set the radio in the APM. If it works in CLI mode, but not mavling. What do I do wrong, I'm skipping a step? Thank, tony

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