Blackness on the screen

[Mjay4]

What can you do if you laptop only shows blackness on the screen and you can't remove battery because it is built-in

 

[Neur0nauT]

Is the laptop powered on and showing power LEDs? You need to give more details like the model of the laptop etc. Is the battery charged or charging?

 

[bjsm]

Crank the brightness up?