1 - No, not unless you purposely choose to try to install custom firmware from it.
2 - No, it's only in memory (that's why it's lost if the PSP shuts off or loses power).
3 - The PSNLover (currently 1.2) plugin lets you play online games, however I don't know if plugins work on 6.31 (they do on 6.20, but not on 6.35).
2 - No, it's only in memory (that's why it's lost if the PSP shuts off or loses power).
3 - The PSNLover (currently 1.2) plugin lets you play online games, however I don't know if plugins work on 6.31 (they do on 6.20, but not on 6.35).