Why the screen in my iPhone 7 doesn't rotate?

Question

Screen in my iphone 7 stays always vertical and doesn't rotate and enlarge when turning the phone.

Answer 1

Lock / Unlock Screen Portrait Orientation Mode - Apple® iPhone® 5. This helps if you can't get the screen/display on your device to flip or rotate. Access the Control Center by touching the bottom of any screen then dragging upward. Tap the PortraitOrientation icon to lock or unlock screen portrait orientation.