So i used this guide to unlink my nnid from my new 3ds and it worked
https://gbatemp.net/threads/unlink-my-nnid-from-my-n3ds-without-losing-content.475307/
But now I'm trying to connect my old 3ds to my nnid, and i get an error saying "022-2591" "this nintendo network id cannot be linked as it has already been linked on another system". What else can I do to make sure it's linked to my old 3ds? Thanks
https://gbatemp.net/threads/unlink-my-nnid-from-my-n3ds-without-losing-content.475307/
But now I'm trying to connect my old 3ds to my nnid, and i get an error saying "022-2591" "this nintendo network id cannot be linked as it has already been linked on another system". What else can I do to make sure it's linked to my old 3ds? Thanks