Phone works but screen is balck how can i fix my phone dosenot drop or fall innto water

[Danianiazi]

My phone works but screen is black

 

[Saga Lout]

The brightness setting might be low or off. Gently swipe a finger from left to right around one cm down from the top of the screen. With luck, that was the cause and with more luck, you might hit the spot that turns it back up. You may have to try this a few times to get the right place.