If a Vita is stuck in a boot loop or fails to update normally, a patched PUP might bypass corruption checks.
The most common reason. Firmware versions 3.60 and 3.65 are the "golden keys" for CFW (Enso). A patched PUP allows users on higher firmware to downgrade or install a modified version of those firmwares. psvupdatpup download patched
A: Yes, but again, use Modoru + official PUP. The result is identical to a patched PUP but safer. If a Vita is stuck in a boot
The main reasons users seek patched PUP files include: psvupdatpup download patched