I think the problem is that, since I formatted EmuNAND in Tinyformat, my NNID is technically linked to two "systems". I honestly don't know what to do from here. If I format sysNAND, my NNID will still be linked to one console (sysNAND backups don't also change the 3ds/numbers/numbers folder, do they?), and that's if it will accept a backup from "another system". I might also try restoring my sysNAND backup to my emuNAND and formatting it from there, but since emuNAND was already formatted, I'm not sure that will work either. I'm not sure if NAND backups contain NNID info, either. Any ideas?