Ok, after a day of windows updates and restarts (and the feeling of regretting buying a Chuwi device), I came to the final conclusion and entered the recovery and reinstalled win11 “from the device”. I don’t really understand yet from where it took the installation files, I had the OS zip downloaded from Chuwi support in download folder, but the reinstall just went through without asking me the source. Does it have an install partition? I’m an engineer but I don’t install Windows or Linux everyday to know all the details. Anyways, I kept the personal files and in 20 minutes the windows was up and running fine, touchscreen working.
It’s the win11 update that screwed the touchscreen driver. I didn’t even have the time to check the touchscreen and stylus after first boot and setup, because the update had already required a restart and from that point on the touchscreen driver was damaged.
I checked the device hardware ID (that was not starting after update) and indeed it is the touchscreen HID device. So, what do I do now when windows asks for updates?
So for future reference, since this will most likely happen for other people, if touchscreen stops working, it’s the windows update. The device worked fine, just no touchscreen.
One thing for Chuwi engineers: the support site links for OS and drivers point only to OS package, 12GB. There is no drivers only package. Please fix that and add the drivers package. Also, check why the windows update creates this mess. Thanks!