I somehow mapped A&B to A. 3DS Bug

[F3arM3]

I changed the control settings to something more intuitive, (Jump a (B on the 3ds since the game uses xbox letter mapping rather than nintendo's), Action b (A), Draw Weapon y (X), Roll x (Y)) and now whenever I press 3ds A on one of the options from the main menu it zooms in on the passport, photo, etc but when I press the A again to confirm it zooms back out as if I pressed B so I am unable to even start the game. I suspect that the B input is picked up slightly before the a which is why I can go in, but it backs me out when I press A again