How to change your wallpaper on your WINTERBOARD theme! (No Computer) Hey guys, Sharpie here, and I'm going to show you how to "mod" your theme by placing a custom picture as your wallpaper. For this you will need. AN INTERNET CONNECTION (if you want to download a CUSTOM wallpaper off the web) . MobileFinder (Cydia) . A source of iPhone-iPod wallpapers (search AlliPhoneWallpapers in Google for a good source.) . This wallpaper needs to be 420x380 px. Okay, first, you need to open MobileFinder (Finder on SpringBoard) and if you haven't, you need to enable system access. To do this, click the settings tab at the top-middle-right and find the "SYSTEM FILE ACCESS" toggle and turn it on. Next, exit finder and set your image you want AS YOUR LOCKSCREEN WALLPAPER, then go back to finder. Now go to your root directory, then go to this directory /private/var/mobile/Library and at the bottom of this folder, there is a file named "LockBackground.png" now just click the file tab and click copy. Now, go back to your root directory and go to this directory: Library/Themes, then choose the folder of your theme. Now paste this pic in the folder and then delete the "Wallpaper.png" then rename the file you just copied to Wallpaper.png, THEN YOUR SET! As soon as your done, respring, and you should have a new background! Thanks for reading!