*A poster managed to black out his screen adjusting his brightness settings, and now has no way of making his screen visible again because he can't see his menus. *
I kno its super funny to have a "brick this phone" feathure but ANYBODY doing so will get a black screen. So do I.
**** lenovo, **** chita.
Btw to solve this (on most android device look like a pretty common issue) you sit in the dark with a powerfull pocket lamp and try for about 3 hours to change the setting while changing light exposure angle.
Sometime it work