There is a factory reset: How to factory reset my device? - #5 by khyeung for the touchscreen controller, and How to factory reset my device? - #4 by Tone for the controller.
Note down all calibration values you did before, they might be lost.
There is a factory reset: How to factory reset my device? - #5 by khyeung for the touchscreen controller, and How to factory reset my device? - #4 by Tone for the controller.
Note down all calibration values you did before, they might be lost.