First, it can be applied from my theme-my wallpaper.

Specific operation steps:

1, click "My Theme"

2. Click on "My"

3. Choose the wallpaper you need

4. Click Apply.

Second, enter the photo album-click on the photo you need-apply.

1. Click "Album"

2. Select a photo and click "More"

3. Click "Set as wallpaper"

4. Click OK.