For mobile phones, first use computer picture editing software to make a course schedule, or use wold to make a form, fill in the specific courses, grab pictures, and modify the specific size to meet the mobile phone desktop. 1. First, we open the settings in the phone desktop. 2. Slide down in the settings to see the locked desktop and wallpaper. 3. Click to enter the locked desktop and wallpaper. 4. Then click Desktop Settings. 5. You can see the settings, such as the size of the desktop layout icon.