Stop the screen from going dark too fast (Auto-Lock) on iPhone (4-Step Visual & Voice Guide)

Tap the gray Settings icon (silver gears) on your Home Screen. Then touch the lower half of the screen and slide your finger UPWARD slightly to scroll down, and tap Display & Brightness.

💡 Helpful Note: Can’t spot Settings? Swipe down from the center of your phone screen (not from the top of the phone, which opens shortcut icons instead of Search) and type “Settings”.

Inside Display & Brightness, touch lower on the screen and slide your finger UPWARD to scroll down until you see Auto-Lock (usually set to 30 Seconds by default), then tap it.

💡 Helpful Note: If Auto-Lock looks grayed out and won't let you tap it, that just means Low Power Mode (yellow battery icon) is turned on—turn off Low Power Mode under Settings → Battery first!

Tap 3 Minutes or 5 Minutes so the blue checkmark moves to your choice. That gives you plenty of relaxed reading time before the screen dims.

💡 Helpful Note: We recommend 3 or 5 Minutes rather than 'Never', so your phone still locks itself safely if you set it down on a table.

Tap ‹ Back at the top-left corner. Your iPhone immediately uses your new timer—and you can still lock your screen manually anytime by clicking the side power button once.

💡 Helpful Note: Whenever you put your phone in your pocket, one quick click of the right-side Power button locks the screen immediately.