How to Stop Your iPhone Screen from Turning Off

Does your iPhone screen keep going dark or turning off while reading something, checking a shopping list, or any other time you don’t want it to? There’s an easy way to fix that in Settings. Here’s how.

The reason your iPhone keeps dimming and turning off is because of a feature called “Auto-Lock,” which automatically puts the iPhone into a sleep/lock mode after a certain period of time. Two-thirds of the way through the set period, the screen dims to half brightness. To fix it, we need to turn “Auto-Lock” off.