Hey ma,
I am experiencing the same with my Chuwi hi8, still looking for a fix.
Have you tried rooting it or tried flashing anything before this happened? Because I did mess around a little so I am afraid that was the cause of my android breaking….
It started for me with the wifi suddenly stopping to work in android. So I thought I would just reboot it to see if it would fix itself but I got stuck in a bootloop. Now the only option I have is to select winows through recovery but also no wifi there. Even with uninstalling the driver.
Please let me know when you find something that fixed this!!
Kind regards,
Hubert