Thank you very much! I never thought someone would answer me. Okay, do not touch the bios, I have one more question.
I reinstalled the tablet chuwi hi 12 dual bios, completely. I reinstalled Android and Windows, the only problem I had is the front camera, I did not detect it on windows or Android, I could solve on windows installing the driver, but on Android I do not know what to do, in the application of the camera does not appear The switch to switch to the front camera, I only see the rear camera available, I have to install some driver in Android, what do I have to do?
I hope you answer me, I've been dealing with the problem for several weeks.
Thanks for your attention