Hi, guys, I'm new to Nintendo 3ds XL and I bought one from a friend. It's version is 4.5.0-10U and I really want to get a r4 card or something. Which one can I have and can I upgrade my 3ds for the new firm version now or wait for the r4 and do something else? I'm a real noob in this matter so please help me. I want to have the latest version working r4. Also, I heard 3ds games doesnt work in any r4, is that true you can only play ds games on it? Thank you!!