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Hi All,

I was hoping someone could assist with some of the issues I have been having!

I purchased a PixHawk FC second hand, and when connecting just the FC to the PC, and running MissionPlanner, it made the normal arming sound, however at the end of the tones, made another set of tones that sounded as though new firmware was ready to be loaded. 

Through much trial and error, I ended up manually uploading the basic X Quad firmware, and now the FC makes all normal loading noises, and I can see the board with no issues in MissionPlanner.

When I plug power in via the 3DR power module (that came with the PixHawk), all that happens is the PWR light flashes green very briefly, then nothing, no sounds, no lights etc. I have also tried running in power via the Aux Out connections with the same result. Power passes through the power module to ESC;s etc.

Does it sound as though I have been sold a dud?

Cheers