The resurgence of interest in UFC 2010 Savedata is largely driven by the popularity of PSP emulators like PPSSPP. Emulation makes managing save data much easier. Players can download save states or raw save files and place them directly into the emulator's memory stick folder. This has allowed a community of players to share "save packs"—collections of game saves that allow players to experiment with maxed-out created fighters or specific career paths without starting from scratch.
If you have downloaded a file named something like ULUS-104590001 or UCUS-98662 , here is exactly how to install it on your PSP or PS Vita (using Adrenaline). Ufc 2010 Psp Savedata