1, first of all, download a good HD picture on your phone, and then open the phone settings.

2, enter the settings page, click click wallpaper.

3, and then click to select a new wallpaper.

4, after entering the page, select all photos to enter.

5, then find and click on the downloaded HD pictures.

6, after selecting it, click on Settings.

7, and finally click on the same time to set up a successful full-screen HD wallpaper.