If you have a .upd file, it is typically installed the same way as a VPK or by placing the update folder into ux0:patch/ .
When searching for PS Vita ROMs, you will encounter three primary formats. Each has a specific use case and installation method. ps vita roms vpk upd
Often found alongside VPKs, these are update files. They are used to patch games to newer versions, fixing bugs or adding content. If you have a
Connect your Vita to your PC via USB or FTP using VitaShell. Copy your .vpk and .upd files to any folder on your ux0: partition (usually a folder named "vpk" for organization). Often found alongside VPKs, these are update files
These are standard "Vita Package" files. They act like an installer (similar to an .exe on Windows or .apk on Android). When you install a VPK via VitaShell, it extracts the game data to your memory card.
To use these files, your PS Vita must be running custom firmware (HENkaku/Enso). Once your device is hacked, follow these steps:
Navigate to the file in VitaShell, press X, and confirm the installation. Note that VPKs require double the storage space during installation (one for the installer, one for the installed files).