So recently, I was playing around with my R4 card. And I was very disappointed in that it would not work with my 3DS on version 11.0.0-33. So I thought up a way that could possibly feed information to a 3DS through hosting a game via anot R4 card sending a game from itself under a "retail game" The hosted "game" would download a game to the 3ds, to run on its own. This gives the NDS file full access to the 3DS, and all its files. This may or may not be usable to firmware downgrade, as for I have not tested this.