1. Open the mobile phone, click "photos", select and enter "recent projects".

2. Select a picture, click share in the lower left corner, and select "use as wallpaper".

3. Adjust the picture, click "set", and click "set at the same time" to set it successfully. Open the mobile phone and click "wallpaper" in the setting interface. Click "select new wallpaper" to open "recent items". Select and adjust the picture, click "set", and click "set at the same time". Return to the wallpaper interface and you can see the set wallpaper.