Sites like DarthSternie's Firmware Archive or the Internet Archive host "Complete Official Firmware" files for 3.73. 2. Installation via PC (Safe Mode)

PlayStation Vita firmware 3.73 is the final official system software released by Sony for the PS Vita. It was released in late 2019. As the "final" update, it is historically significant because it officially ended the active development life of the handheld console.

While 3.73 is stable, veteran users often recommend it only as a stepping stone.

Whenever Sony releases a firmware update for the Vita, the community treats the term "stability" as a running gag. When 3.73 launched in October 2019, users flooded forums with sarcastic comments: