I want to thank everyone in this thread, the info's been helpful. I was hoping I could have some additional questions answered in relation to this topic though.
I actually have added a US nnid to a Japanese new 3ds ll. From what I read from CoolMe (in the aforementioned thread) this shouldn't be possible but I could have easily misinterpreted. Anyway, the way this happened is that I Imported the 3ds from a Japanese seller freshly initialized, followed the guide to install b9s + luma and then followed the guide on the same site to change the region. I then tried to sign in with my nnid but it turned out It was still logged into a 3ds I had lost many years ago. I called nintendo support and told them the issue and they had me fill out a help ticket. I put in the Japanese console's serial number and told them the old 3ds's model. The operator also told me to add in purchase history and card numbers but I hadn't ever purchased anything on that 3ds so I simply stated as such. I also gave them the type of 3ds it was, ( an old red regular 3ds)
To skip to the point, they sent me an email saying to format my system and go ahead logging in. Now I didn't format my system. I didn't want to go through the process of re flashing my backup and I also thought it'd break something. I simply logged in and my nnid worked. Unfortunately the eshop isn't working but looking online it seemed like there are workaround for this for the old 3ds.
tldr; I was able to use a us nnid on my region switched n3ds ll
So my questions are: How was it possible for me to log in with this nnid? and Would anyone have an idea of how to fix my eshop, the error code i'm receiving is 007-2001
I actually have added a US nnid to a Japanese new 3ds ll. From what I read from CoolMe (in the aforementioned thread) this shouldn't be possible but I could have easily misinterpreted. Anyway, the way this happened is that I Imported the 3ds from a Japanese seller freshly initialized, followed the guide to install b9s + luma and then followed the guide on the same site to change the region. I then tried to sign in with my nnid but it turned out It was still logged into a 3ds I had lost many years ago. I called nintendo support and told them the issue and they had me fill out a help ticket. I put in the Japanese console's serial number and told them the old 3ds's model. The operator also told me to add in purchase history and card numbers but I hadn't ever purchased anything on that 3ds so I simply stated as such. I also gave them the type of 3ds it was, ( an old red regular 3ds)
To skip to the point, they sent me an email saying to format my system and go ahead logging in. Now I didn't format my system. I didn't want to go through the process of re flashing my backup and I also thought it'd break something. I simply logged in and my nnid worked. Unfortunately the eshop isn't working but looking online it seemed like there are workaround for this for the old 3ds.
tldr; I was able to use a us nnid on my region switched n3ds ll
So my questions are: How was it possible for me to log in with this nnid? and Would anyone have an idea of how to fix my eshop, the error code i'm receiving is 007-2001