This article will explain exactly what FW 3.73 is, how to download it legitimately, and—more importantly—how to make it work better than Sony ever intended.
Released in 2019, FW 3.73 was Sony’s final “security” patch for the Vita. For stock users, it’s required for PSN access. For homebrew users, it’s often a stepping stone (though most downgrade to 3.60 or 3.65). But sometimes, you just need the official 3.73 file – intact, uncorrupted, and ready to install. ps vita firmware 373 download better work