I have used the DSiExploit to install CFW on my brother's New 2DS XL from my Old 3DS using the 3DSGuide Webpage. After the transfer was done, I did something wrong where the DSiWare title wasn't on the system. The Transfer said that even though it couldn't find DSiWare on the SD Card, the save data (the hacked saved data) was still there, so all I had to do was redownload it from the eShop. After starting the download process, the DSiWare would not download. It wasn't an internet problem as for everyone else, the internet worked fine. Also after the transfer, I had restored the NAND image for my Old 3DS, which the NAND image had my NNID still linked to it. I tried opening the eShop on Old 3DS and it said "You can't use this NNID on this system". I tried formatting the system memory on both systems, and the Old 3DS still had the same problem. Is there anyway I can't fix this? Or can I just not use my NNID anymore (which sucks because I have money on this NNID)? Thank you.