I was following this guide- https://github.com/Plailect/Guide/wiki/DSiWare-Downgrade step by step and during the system transfer part, when RIGHT at the end 3DS #2 gave an error and 3DS #1 was already formatted upon completion. 3DS #2 was ready to finish the transfer when it restarted by saying that it needed the SD of the source 3DS containing the DSiWare title I purchased. Well, that title no longer exists. I went ahead and formatted 3DS #2 in hopes that I could just use the NNID on 3DS #1 again, however it won't let me use that one. So I figured I had to wait 7 days like the System Transfer message said. So I decided to try and put my NNID back on 3DS #1 so I could do a NAND restore and get my things back until I could attempt this transfer again, but it said that the NNID is already linked to a 3DS! I had no idea that MY NNID would be affected in this at all :'( My NNID isn't on any of the 3DSs in this project, so what the hell?! I followed the steps exactly and wasn't the least bit careless.. Do I perhaps have to wait 7 days for my account to function right again? Someone please help me out with this..