What can I do about gyro/accelerometer error

Im not very optimistic about this problem, I replaced my back casing, witch was a "xxxxxx" job. But everything came back together sort of. the problem is the motion sensor system has become unstable. I have downloaded an app showing me data from the gyro/accelerometers and the data fluctuates constantly, resulting in the screen not rotating, and the parallax effect needs to be turned off. so, it seems that i have messed up something and there seems to bee little I can do, Ive tried the restart and and factory reset, and total recovery via macbook.Ive tried the headphone jack thing,no joy. And returning it to apple is not an option, so it seems that Im stuck with a non rotating iPad:)

Still maybe there is somebody out there with a miracle solution, my fingers are crossed XX