Ok,
That is weird, as the battery is only 11.1vdc. But if your getting a reading there, I'm sure phantom mainboard is good. So , so far I'm assuming the wifi module has failed. But for gimbal having no power, that is something else. You said you checked all connectors, wires. So can be 3 possibilities.
1. Power transfer board ( the small circuit board the gimbal wires hook to from ZENMUSE port.
2) wire bad somewhere?
3) gimbal issue ( ribbon, or mainboard )
I would first order a p2v+ cable set, not expensive at all, comes with all new cables, new compass cable, esc cables, and power transfer board.
Try this if still no go, I would inspect the ribbon closely or replace ( also cheap ) and if still no, than I would have to say BAD gimbal mainboard.
First:
With battery out of bird, turn it on, test those leads for 11.1vdc
( the pin CLOSEST, to the 2 communication pads, is positive, the other is negative. I'm wondering if the battery shorted out, and is kicking off huge volts ( 17vdc ) causing the burnout? Can you please look into this, as well.
Keep us informed?
I realize I'm asking you to buy and try stuff, but $11, and $20 is a LOT cheaper than the $175+ mainboard.
That would suck to buy it then realize it was a bad wire or something stupid like that. This is the route I would take if it were mine.
But I have working parts to swap with, and could figure it out quickly, but without working extras, you just have to exhaust all possibilities. Plus a new set of wires never hurts!
Let me know
J Dot
