Hiya. I have a 3DS with firmware version 4.0.5 and I just purchased a Gateway, so I'm planning to upgrade via game cart to 4.1-4.5. What would be the best version? Most people seem to upgrade to 4.5. Is that the most feature-rich version that supports Gateway? Isn't there anything that I can do with previous versions but not with 4.5? ie: Was any useful exploit fixed between 4.1 and 4.5? Also, isn't there any way of dumping my NAND on 4.0.5 before doing the upgrade? Thank you!