i can't retrieve a wallpaper setting i looked in my gallery but it is not there I selected a picture from the gallery as my wallpaper but replaced it with another picture from my gallery, and i can't find my original picture.  How can i retrieve it?
Android doesn't save a history of old wallpapers. If the old wallpaper is still in your Gallery, just select it the same way you did before. If you've deleted it from wherever it originally came from (e.g. your camera photos or downloads folder), through Gallery or another app, then it's gone.