Things You'll Need
Instructions
Turn on your Sony PSP and wait for it to boot into the PSP menu, which is called the PSP XMB. Locate the "Playstation Store" icon on the far right of the menu and select it with "X."
Wait as the PlayStation Store loads up and you will see the welcome screen of the PSP part of the store. Select "Themes" from the menu.
Browse the available themes for the PSP Slim and select one of them. Select download to begin the download of your theme. All themes are free.
Press the "O" button twice to return to the PSP menu. Select the "Theme Settings" from the PSP menu on the far left.
Select your theme from the list of installed themes to apply it.