Released in , Firmware 3.73 was a minor system software update. According to Sony’s official patch notes, its primary purpose was to improve system performance and stability. Specifically, it addressed an issue where the PS Vita would sometimes freeze while browsing the PlayStation Store or viewing the LiveArea screen.
Connect your Vita to the PC via USB and select in the settings. Why 3.73 is "Useful"
If the update fails to find the server, reset your network settings to "Automatic."
If you are starting today , choose 3.73 . It is better for the average user because you don't need to hunt for "compatibility packs" for newer games like Ninja Gaiden Sigma 2 Plus or Oddworld: Munch's Oddysee .