Are the icons indicating that you are pressing them, indicating that the touch screen is responding? You might be able to disconnect the battery, and may even do both cables and short them together. The return to power, might restore it to default center position. This doesn't explain why it is not functional, but will restore to normal condition. I will try and research the symptom, see if I can find some info.
Dec 9, 2019 at 11:49 AM
(Merged)