Ok, I need help getting things sorted out. There are a lot of posts full of info, but I get confused with so much stuff going on and I need clear answers. My 2DS is on FW 10.3.0-28E, can I downgrade it? Can I install CFW on it once downgraded? Can I backup games on the 2DS? How much memory do I need on the SD card? If you could answer all these questions, it would be greatly appreciated.