Why does my iphone screen black out

- Why does my iphone screen blackout
- Why does my iphone screen black out randomly
- Why does my iphone screen turn black out of nowhere
- Why did my iphone screen black out
- Why did my iphone screen go black
- Iphone screen went black but still on
- Iphone black screen problem
- Iphone black screen but still on
- Iphone screen suddenly went black