PSP:Applying ROM Patches

Playing patched ROMs requires your PSP to have custom firmware installed.

Items needed

• Game in .iso format (Creating Game Backups).
• Patch file (xdelta format).
• Patching software.
• Archive extraction software of your choice.
• PSP with custom firmware installed (Custom Firmware Installation).

Procedure

1. Download and extract your game patch file (if necessary). The file should be in xdelta format.
2. Download and extract xdelta UI to somewhere you can easily access and launch xdelta UI.
3. Navigate to the "Apply Patch" tab. It will be at the top of the window.
4. Next to the Patch section, click Open. This will open an explorer window. Navigate to your xdelta patch’s location, select it, then click open.
5. Next to the Source File section, click Open. This will open an explorer window. Navigate to your game .iso file's location, select it, then click open.
6. Next to the Output File section, click "…". This will open an explorer window. Navigate to the folder that you wish to save your patched game to.
   • Under the "File name" section, enter your desired output file name, along with .iso.
   • Leave "Save as type" blank and click Save.
7. Click the patch button within the Xdelta UI window. It may take a few minutes for the patch to apply, but should display a "File patched successfully" message.