Move the PSVUPDAT.PUP file into the UPDATE folder you created.
If you are running custom firmware (CFW), 3.74 is generally considered the version to rather than use as your base: PS Vita 3.74 Firmware Just Got WORSE!
There are two ways to update your PS Vita to firmware 3.74. The method you choose depends on the current state of your console. ps vita 374 firmware link
The Ultimate PS Vita 3.74 Firmware Guide: Official Downloads, Installation, and Modding Steps
Sony does not always make these files easy to find on their main support pages as they age. Below are the direct links to the official firmware files. Move the PSVUPDAT
You can download the update file (named PSVUPDAT.PUP ) from the following regional support sites: PS Vita System Software (US) United Kingdom: PS Vita System Software (UK) Canada: PS Vita System Software (Canada) Installation Instructions To manually update your PS Vita or PS TV via a computer:
Transferring content between a PS3 and PS Vita is no longer supported. Installation Methods Wi-Fi Update: System Update Update Using Wi-Fi Manual Update (PS TV / Safe Mode): Create a folder named on a USB drive. Inside that, create a folder named Save the downloaded PSVUPDAT.PUP file into the by holding the Power button for seven seconds and select Update System Software PlayStation Important Note for Homebrew Users If your Vita is modded, updating directly to 3.74 will remove your custom firmware (CFW) The method you choose depends on the current
: You must now generate a "Device Setup Password" via the Sony website to log into PSN on a Vita.
Unlike previous "stability" updates, version 3.74 implemented significant structural changes to how users interact with the PlayStation Network (PSN):