I have been attempting to create a Japanese emuNAND on one of my sd cards by following the guide posted here: (https://gbatemp.net/threads/3ds-region-change-tutorial-easy-way.386207) and have had little no success so far. The step I think I keep missing has something to do with the CIA files linked here: (https://gbatemp.net/threads/3ds-region-change-tutorial-easy-way.386207), but I'm not sure where they come in during this process. Does anyone who managed to set up know what I need to do with the listed CIAs or can give a good description of what you did to set this up?