I own a O3DS with FW 2.1.0-4E I own a copy of Cubic Ninja. I would like to run backup of my games. What I should install? Can someone please tell me what I should do? I don't have, and don't wanna buy any flashcard I would like to use Ninjhaxx... I haven't understood very much what emunand means and I have a question. If I buy a game wich update to 4.x FW, if I buy one if ultimate games, how can I do for don't upgrade? Please, I need to know these things ASAP P.s I need to install PBT-CFW. How to uninstall it?