You are using tools like modoru to downgrade your firmware to 3.60 or 3.65 (the "golden" firmwares for homebrew) and need the specific version file. How to Install Firmware via PC (Manual Method)
The PSP2UPDAT.PUP file is the gateway to the PS Vita's ecosystem. Whether you are a standard user looking for the latest features or a power user trying to preserve a "golden" firmware version, knowing how this file works and where it lives is essential for maintaining your handheld. psp2updatpup
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"Go," I said, and for a moment I thought it understood. You are using tools like modoru to downgrade