I'm planning on getting a New 3DS as I personally love the model and as I recently lost my old 3DS. A few issues arise from this however. I have a US NNID and I personally want it attached to the system. The plan is to homebrew it and region swap it. I got my friend's unused 3DS to recover my NNID so I can transfer it to the New 3DS. However I am unsure if that is even possible. I also don't have any other systems to help. Just the US New 3DS XL and the JP New 3DS.
How would I be going about doing this?
How would I be going about doing this?