Brightness Zero

[AC Question]

Just set my display brightness to zero accidentally. Now the display is totally black! Any ideas on how to reset the brightness back up when I can't see the screen? and also i reach the maximum entry of password due to i cant see the screen. please help me on this

 

[UJ95x]

How were you able to turn the brightness down to zero? As far as I know that isn't possible without a third party app (If at all possible)? Which phone are you using?

 

[B. Diddy]

What happens if you look at the phone in a completely dark room? Can you see anything at all? What if you shine a flashlight directly onto the screen--can you say anything faintly?