No matter SummerBoard or WinterBoard is installed on your iPhone, Lazy Panda for iPhone can help you add themes to your iPhone from a local computer.

Step 1: Connect your iPhone to your computer and run Lazy Panda for iPhone. Click the Media button and select Themes to enter the Themes management interface.

Step 2: Click the iPhone Themes tab and you can see the Add Theme button at the bottom of the interface. Click it and select the theme package through File Browser.

Note: The theme package is a folder containing PNG images. If your theme package is a RAR or ZIP file, please unzip it first.

Step 3: When the installation completes, you can click Set as Theme to enable the new theme immediately, or you can enable it later via SummerBoard or WinterBoard.