- Check your system settings:
Go to ‘Settings > Display & Brightness > ‘ and make sure ‘Auto-Rotate’ is turned ‘On’.
- Check your app settings:
Go to the app you are viewing and check to make sure ‘Auto-Rotate’ is turned ‘On’.
- Check your device’s physical button:
Your device may have a physical rotation lock button. Check and make sure this button is not currently active.