Why does my Android screen keep going black?

Unfortunately, there’s no one single thing that can cause your Android to have a black screen. Here are a few causes, but there could be others, too: The screen’s LCD connectors may be loose. There is a critical system error.

How do I turn off screen timeout on Android?

Whenever you want to change the screen timeout length, swipe down from the top of the screen to open the notification panel and “Quick Settings.” Tap the Coffee Mug icon in “Quick Settings.” By default, the screen timeout will be changed to “Infinite,” and the screen will not turn off.