Samsung i780/Backlight dims&phone enterns flight mode on low battery/

[Xman556]

When the battery meter reaches 10% the backlight automatically dims and there is no way to switch it on again.Is very frustrating because it basically forces you to either charge or change the battery before it's completely empty.
Also bellow 10% the phone enters in flight mode.
Any ideeas on how to overide that?

Thanks