Gimbal still off-center

[HarveyMS]

Has anyone ever tried, of came up with a way to communicate with the gimbal via the micro USB port (Phantom 3)? I plugged mine into my computer without an SD card in the gimbal. The camera went limp, pretty much. I say, pretty much, because the pitch motor very slowly, and in small increments, turned the camera all the way to the down position. I have the problem with the camera being off center and pointing to the left, or right. Someone recently said that there is a module on the gimbal board that is calibrated by DJI at the factory that controls this. Surely, DJI communicates with it and programs it via that micro USB port. . . Anyway, many smarter and more educated than I will maybe figure it out. Thanks.