Swipe down from the top of the screen to open the Quick settings panel.
Look for the screen orientation icon. Depending on your settings, you may need to look for the Portrait, Landscape, or Auto Rotate icon. Remember, the Portrait and Landscape icons are gray when they're active, while the Auto Rotate icon is blue when enabled.
If the screen is locked in Portrait or Landscape mode and you need to change it, tap the icon (either Portrait or Landscape) so it activates Auto rotate. If Auto rotate is already activated, you don't need to select anything.
