Hi have phantom fc40 bought secondhand not had running put new main board in and naza m v2 controller connected naza assistant on pc shows no faults remote connects to drone but nothing works motors do not try to start up at any point just orange light flashing can anyone help please green light comes on when battery is connected to drone normal sound and after few seconds orange or yellow light flashes until connected to laptop and then only small green light on no noise on naza software at bottom of screen on right little blue light flashed rapidly motor test work but carnt seem to anything else does remote need updating?
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