Tool brand model: one plus eight 8pro
System version: hydrogen OS 1 1
Step 1: Select the wallpaper image in the mobile phone gallery, click three points in the upper right corner, and select Settings.
2. Click on the gallery.
3. Select the wallpaper set as lock screen.
Have you learned all the tips I shared with you? If you feel helpful to yourself, you may wish to pay attention to the collection, and there are practical tutorials updated every day ~