Summary
Mandatory Device Passwords: Standard PSN passwords no longer work for direct sign-in. You must now generate and use a Device Setup Password from your account settings on a PC or mobile device to log in to the Vita . ps vita system software update 374 updated
Removal of Account Creation: The ability to create a new PSN account directly on the Vita was officially retired. New users now have to use a PC or mobile device to join the ecosystem. Report: PS Vita System Software Update 3
If your Vita already had CFW (Enso or HENkaku) on 3.60/3.65, updating to 3.74 will break CFW and remove permanent hack. Signing in to PlayStation on the device now
3. Analysis of Purpose Unlike major updates (e.g., 3.60 which introduced Henkaku exploits), Update 3.74 served three distinct purposes:
Security Integration: The firmware introduced standard Two-Factor Authentication (2FA) support for signing into PSN. How to Perform the Update
The PS Vita System Software Update 3.74 is a double-edged sword.