Turn Screen Rotation On / Off - Samsung Galaxy S6 edge +
Screen rotation displays content in landscape (horizontal) or portrait (vertical) and is not available for all apps. Simply turn the device to change the view.
Swipe down from the top of the screen to reveal the notification panel.
These instructions apply to Standard mode only.
Tap Auto rotate.
If auto rotate is already enabled, a lock icon is displayed; view step 3 for instructions.
Tapping Auto Rotate locks the screen into the current viewing mode (e.g. Portrait, Landscape).
To return to the auto rotation setting, tap the Lock icon to lock screen orientation (e.g. Portrait, Landscape).