So I ran into a few problems with SuperMysteryDungeon Exploit. The most important one was the installer doing a partial install on the cart and bricking the game. I was able to fix it, so I'll tell you how to proceed. If you have any problems related or solved it will be nice to post them here. For the SMD Installer error C86044CD during installation on N3DS (throwed by write_savedata): Just delete every file in the cart save with svdt. (JKSV delete savedata will not do) Game will think it has a blank save and will start normally. I will help with anything I can. Just for the record, I am unable to install smd exploit due to this error, even if I can recover the cart working state.