What is the reason why Apple's mobile phone can't display horizontally?

System: IOS 15.4. 1

What is the reason why Apple's mobile phone can't display horizontally? Let's share with you why Apple's mobile phone suddenly can't switch screens.

Maybe it's a vertical lock. Just close it. Secondly, it may be that the current application does not support screen rotation and needs to be replaced by other applications. If the landscape function cannot be opened and used in all applications.

You can try the following methods to solve it:

Method 1:

Pull down from the top of the right side of the phone to open the control center.

Then click the lock icon to lock the vertical direction, wait a moment, and then turn off the vertical direction lock to try.

Method 2:

Press and hold the power button and volume button on the phone, slide the slider to turn it off, and then press and hold the power button to turn it on.

Method 3:

Open phone settings, click General, and then select Software Update.

After entering the page, check whether there is a new version. If there is a new version, please select Update.

Method 4:

Open the phone settings, enter the page, and click General.

Click Transfer or Restore iPhone, and after entering the page, select Restore.

In the pop-up window, click Restore All Settings, and then click Restore All Settings again.

Summary:

Method 1:

Slide into the mobile phone control center

Select the lock icon to lock the vertical orientation, and then turn it off.

Method 2:

Press the power button volume plus button to turn off, press the power button to turn on.

Method 3:

Enter Settings General Software Update

See if there is a new version update.

Method 4:

General access settings

Choose to transfer or restore iPhone Restore.

Select to restore all settings.