So I have A9LH and Luma on a new3ds xl. I want to hack my brothers old3ds. I have LoE on my new3ds NNID. I saw that region changing would unlink your NNID, so I thought, maybe if I just changed the Region, I could use that NNID on my brothers 3ds! Well, I did it, when I try to sign in to it on the old 3ds, it says it's still in use, but I can't sign into it on my new3ds, which means that it was unlinked...any help?