I just downgraded my old model 3ds XL from 10.3 to 9.2 and installed rxtools. I unlinked the sysnand and emunand (I think). Everything seems to working correctly. But now I can't play my physical cart of pokemon super mystery dungeon. It says it has to be at 9.9 or higher. So how do I go about updating the emunand? Should I download firmware 10.3 and use sysupdate? Or should I update to the latest version from nintendo from the emunand system settings?