that's true , gaùme cards doesn't update the browserUpdate from the game cart doesn't include the web browser right? I might get a Pokemon or any game force to update 6.0-6.3 from game shop or something, will that work for sure?
as for installing the browser , just download the cia file (i think it's something like xxxxx9d02.cia) and install it with fbi or devmenu (no emunand , install it to sysnand)