To use a specific or "patched" PUP file, it must be placed in a precise directory structure so the system can recognize it: Standard Filename Required Directory (USB/SD) PS Vita Firmware PSP2UPDAT.PUP /PSVITA/UPDATE/ PS TV Update PSVUPDAT.PUP /PSVITA/UPDATE/ VitaDeploy Mod PSP2UPDAT.PUP ux0:app/UPDATE365/ (internal) Official Sources : Latest updates are available directly from the Official Sony PlayStation Support Page Archival Sources

Always verify the MD5 hash of a patched PUP file before installing to ensure it isn't corrupted, which could brick your device.

Here is an interesting look at what this file is, why people search for "patched" versions, and the cat-and-mouse game behind it.

In the context of PlayStation Vita hacking, a patched update file is typically used with tools like