I'm looking to pick up a new flash card, as mine still refuses to work with my N3DS no matter what I try. It is a bit aged at this point, I got it around launch of the DSTWO. Anyway, I'm a bit confused what I need for what I want now that there's different cards and the gateway thingamajig (I've been out of the scene for a LONG time). I'm not at all interested in present or future 3DS rom emulation, I only want to be able to play my DS, GBA, etc library on my N3DSXL. Appreciate any help.