I have a banned 2ds it has both Errors. I have a stock 3ds, and i want to get cfw on it. You can do a system transfer downgrade method with a cfw ds to a stock ds. But since my 2ds is banned, im guessing the console ban will not stick but the NNID will be transferred to the 3ds. Is there a way you can remove the NNID from the banned ds then do the system transfer over to stock? I was thinking about using the arm9lh.bin patch to create a new NNID then system transferring it over to the stock ds.