I just hacked my 3DS today thanks to the lovely r4ishdc flashcart. I used the ntrboot method and installed Homebrew Launcher Rosalina v2.0.0. So anyways i'm trying to backup my streetpass data so I can use the StreetPassPuzzleEditor that will allow me to unlock all the lovely puzzle pieces. Unfortunately, what I tried so far didn't work. JKSM would give me an error "UH OH! Something went wrong writing!" and svdt is difficult to use. Checkpoint doesn't allow backup of system titles. What's the best way to backup my street pass data?

