Lock screen

[geotiler]

I have a picture of a favourite tree i have used for years on lock and home screens .

Now it changes after the mobile is turned off.

I have tried to remove every bit of the auto galleries etc but to no avail .

Does anyone know how to retain just the image required ?

Thanks in advance 

[xSteveuk]

Hi
This page maybe helpful to you

How do I change the wallpaper on my Samsung Galaxy smartphone?

https://www.samsung.com/uk/support/mobile-devices/how-do-i-change-the-wallpaper-on-my-samsung-galaxy...