Good evening, in October 2020 I made an update to my tablet, After that he no longer allowed me to log in. I did the rest and after that the touch no longer went. I have been contacting the assistance since then, but a stone thrown into a well makes more noise. I had purchased it for its versatility of being both tablet and PC, but now I can only use it connected to the keyboard.
Check this, its solved my problem with touch and pen - Touchscreen and pen deadzone FINALLY SOLVED