any gateway news? let me guess
has anyone tried using download play on the new 3ds with the host being the old 3ds.
Did I read somewhere the guest new 3ds fw needs to be updated to work?
use the gateway in the old 3ds, downgrade it to 4.5 (if not already done), use a new SD card to make a new emunand, DON'T update the emunand, use a .3ds or .cia file to launch the game, start download play.
Long story short, if the old 3DS initiating the download play is on a lower firmware, no issue. If it's on a higher one then the N3DS has to update to play. I did hear a rumor this may only be true of .cia files but I haven't confirmed that.