Auto-Lock is a setting that will automatically lock your iPhone and put it into sleep mode.
Why Should I Make Sure Auto-Lock Is Turned On?
If Auto-Lock is set to never, your iPhone's battery will drain significantly faster because the display will always be on.
How Do I Make Sure Auto-Lock Is Turned On?
- Open the Settings app.
- Tap Display & Brightness.
- Tap Auto-Lock.
- The amount of time you select here will determine how long it takes before your iPhone automatically locks itself.
- Make sure Never is not the option you have selected on this menu.
- Your iPhone won't automatically lock as long as you are actively using it!