Because you are hunting for a specific "UP" version, you might encounter the following issues. Here is the fix list.
Many modern gamers assume that FIFA Street died after the 2012 reboot (FIFA Street). However, EA Canada quietly developed a dedicated version for the PSP that carried the moniker FIFA Street 4.
Unlike the console versions which focused on 4v4 or 5v5, the PSP version is a hybrid:
Why the demand for the ISO? Sony discontinued the PSP store years ago. Physical UMDs (Universal Media Discs) are rare and expensive. The only practical way to play FIFA Street 4 in 2026 is via a digital backup, commonly known as an "ISO."
Since there is no official "FIFA Street 4," you need to be careful with your search terms to get the file you actually want.
Option A: You want the authentic arcade experience.
Option B: You want the "FIFA Street 4" mod experience.
Where to look:
Transfer to PSP
Launch and Play
Go to Games → Memory Stick. You should see “FIFA Street 4 UPD.” Launch and enjoy.
Title: FIFA Street 4
Platform: Sony PlayStation Portable (PSP)
Region: EUR / USA (multi)
Genre: Arcade Football / Street Soccer
Developer: EA Canada / EA Bright Light (PSP conversion)
Release Year: 2012 (PSP version based on FIFA Street 2 engine, re‑skinned)
Game ID (example): ULES‑01485 / ULUS‑10567
File Format: ISO / CSO
If you are seeing the extension ".upd" specifically, this usually refers to a Game Update Patch rather than the game itself.