PPSSPP save file

[MercenaryVictor]

Do vanilla rom and hack rom share the save files?
And how I make they don't share anymore?

 

[bloodywing]

If they share the same game ID, they do. Depending on the hack however the Game ID might have changed. But that is up to the specific hack.

 

[MercenaryVictor]

If they share the same game ID, they do. Depending on the hack however the Game ID might have changed. But that is up to the specific hack.

How I can change it?

 

[bloodywing]

How I can change it?

You can't - it requires binary hacking:
https://www.psdevwiki.com/psp/Param.sfo - I will not hold your hand and teach you that.

There will also be some caveats depending on the game and how the game handles save games.