1. Open the settings of the mobile phone, find "Wallpapers" and click to enter, and click "More Wallpapers" to switch to "Dynamic Wallpapers".

2. Select the corresponding dynamic wallpaper according to your personal preference, click Enter, and click the "Download" button at the bottom.

3. After downloading, click the "Music" symbol on the right side of the dynamic wallpaper to set the sound. When the symbol "slash" appears, the sound is turned off, and when it does not appear, the sound is turned on.

4. After setting, click "Set as wallpaper" and select "Apply screen lock", "Apply desktop" or "Apply all" according to the prompt.