How to change your PS Vita Wallpaper
Once you have downloaded your PS Vita Wallpaper from PSVitaWalls.com this is how you'll change your current wallpaper to your brand new wallpaper on your PS Vita.
Follow these steps to change your PS Vita Wallpaper:
In edit mode, tap (Background Settings) in the lower right of the page for which you want to change the wallpaper. Choose the wallpaper on the screen that appears. You can use images saved on the memory card for the PS Vita system as page wallpapers.
Or you can use this alternative method:
1) Press and hold any area of your screen for 2 - 4 seconds.
2) Boxes with outlines will appear.
3) Here you can choose change the PS Vita background theme and rearrange icons.
4) When you're done, just press the "return" button located on the bottom left of the screen.