To do this, first open the App menu and then the settings.
Move to "Backgrounds and themes". Navigate now to "My Backgrounds".
Touch the leftmost picture. This will now show you the gallery. In it you will find all the photos you have saved on your smartphone.
Select a picture and you will be asked what you would like to use it for.
You can choose:
- Start Screen
- Lock Screen
- Start and Lock Screen
After you have made a selection, the background image for the corresponding screen is set as the background image.
You now know how to change the background image on the Samsung Galaxy A6 Plus.