The SMS screen of Iphone 5 can't rotate, and it is always horizontal. What if it's not vertical?

Double-click the Home button and swipe left to unlock the vertical screen.

IPhone5 can't rotate because it locks the screen to rotate.

How to open the screen of iPhone5: Slide upward from the bottom of the screen of iPhone5, and control buttons will appear, including flight mode, wireless network, Bluetooth and do not disturb mode, and the last one is screen rotation. You can click to open the screen.

Open safari and view the results horizontally.

Double-click the Home button, swipe right and click the lock.

I doubt that you have unlocked the screen. Pay attention to whether there is a lock screen rotation sign in the top status bar. If there is, it is locked.

Make sure there is no screen lock, the restore is invalid, and there is no influence of other plug-ins, so I have to ask you to brush the system.