Apple's mobile phone is lying on the video screen because it doesn't open the vertical screen lock.

1, the solution is as follows: 1, pull down the screen. On the Apple mobile phone, hold down the top of the screen with your hand and pull down the shortcut control bar.

2. Find the direction lock. In the shortcut bar, find the icon with the small lock and click it.

3. Open the direction lock. After clicking, the button will turn into a white background color, indicating that the vertical locking has been successfully turned on. After locking, the mobile phone screen will no longer automatically switch between horizontal and vertical display, but always keep vertical display.