I meant to say leave (x) Autoboot EmuNAND alone if it was like that when you found it. This was to double check in System Settings if you had EmuNAND or not. Don't turn it on or off. You can turn it on, but it'll do nothing if you don't actually have EmuNAND put on the SD card.the user string setting is already enabled and i don't think that is a good idea enabling autoboot emunand i think it may risk to brick the console
After seeing the Sys (or Emu) tag in System Settings, boot the 3DS again without the SD card. If you can access HOME Menu and still see those blank spinning titles, they're installed on the TWLN drive (ie, real DSiWare).