So I bought a N3DS XL today with system version 9.0.0.20U. I wanted to try out some demos but that requires me to update the system version to whatever the latest is. I wanted to know if there was a way I could download and play demos on the current version I'm on. I was reading about this emuNAND stuff, but I'm confused. Do you need a gateway for this emuNAND? If not, how do I get emuNAND running, and will it allow me to download and play games on the newest system version, while keeping the N3DS on 9.0.0.20U?
Also, I have Pokemon AS physical version, I want to play it. Would there be a problem If I play it (ex. system update or anything) before I get emuNAND?
Thanks in advance.