The steps of setting the picture as mobile phone wallpaper for Apple mobile phone are as follows:

Mobile phone: iphone 13

System: iOS 13

1. In the setting interface, click the wallpaper to enter.

2. Enter the wallpaper interface, click and select new wallpaper to enter.

3. On the selection page, click on all photos to enter.

4. Enter all photo interfaces, and click the appropriate photo to enter.

5. In the photo setting interface, click the Settings button.