Backlight turned off automatically

[Guest printermatter]

Hi there,

I have this problem with my Samsung Blackjack where after being idle for very long time i.e. 1 to 2 hours, when i pick it up again, the backlight is turned off, and doesnt come back up automatically. Usually when we press any key, the backlight will turn on again (unless device is locked). But even here after unlocking, it does not turn on again. Does anybody know why?

Also, how do i manually turn on the backlight in this case?

Thanks in advance!

[Guest xippon]

This could mean that your phone has low battery. In registry there is a string that define on what % is disabling backlight.