the screen stay on when i connect in usb massive storage mode,it dont turn off unless i do so with the "lock button".
the sensitivity of brightness was totally lost.
i think the problem is somewhat related to the light sensor and usb.
because when i was accostumed to use the usb host mode function and close the app of usb H.e.n ,the display britness got zero ,and i had to go in the control panel to adjust the bright.

have you all ever experienced something like that?
any solution?