Conclusion: Preserving the Greatest Portable Football Game
Always back up the entire <TITLE_ID> save folder before editing or transferring.
Keep region-consistent UMD and save or use tools/firmware that support cross-region if necessary.
Use verified community tools for PARAM.SFO edits; avoid random editors to reduce corruption risk.
Q: My PSP says “Version 2.00 save data” but I have version 1.00.
A: Some option files require a specific game update. PES 6 on PSP never had official patches, but some EU copies shipped with a “v1.10” update on the UMD. Check your disc ring.