I bought this drone used and it is Very clean but when I connected to the controller / DJI GO, I got this error *See image. Has anyone here had the same issue and what was the solution? I have ordered a replacement GPS module. I've tried to get to the center board and remove it to check the ribbon connection but its just too hard to get to. I see that the GPS module has a tiny battery on it (for memory I assume) and the voltage I measured on it was only .49 volts. Could this be the problem? Any schematics or instructions on how to disassemble this drone would be very much appreciated. TY.
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