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    Professional Phantom 3 Pro problem with calibration (inactive)

    Hello, I ve just buy Phantom 3 Pro, but I can not calibrate it, I'm searching forum for answers but I can not find help anywhere. I do as the instruction said, I update the firmware to 1.8 and install it to drone using DJI GO app. Im using DJI GO app not DJI Go 4 app. After this I was asked to...