After I make a call sometimes I need to enter an extension. When I receive certain calls I need to be able to hit a keypad number. The phone screen goes dark in both situations. How do I keep it lit?
It remains dark even when you move the phone away from your ear? Is the proximity sensor covered by a screen protector or case, perhaps?
Try hitting the menu button to see if that lights up the screen so you can enter extensions or respond to prompts.
