3DS Chaos FAQ - Frequently Asked Questions Here are a selection of frequently asked questions & their answers that may help you out What does O3DS & N3DS mean? O3DS = original 3DS/3DS XL N3DS = New 3DS/N3DS XL Can I play .3ds ROMs on my O3DS/N3DS/2DS? Yes - Depending on what firmware your console is on O3DS on 4.x-9.2 can use a Gateway card or one of it's clones O3DS above 9.2 can use a Sky3DS or one of its clones N3DS on 9.0-9.2 can use a Gateway card or one of it's clones that support N3DS - Do Not update your emuNAND version over 9.4 or you will loose Gateway support N3DS above 9.2 can use a Sky3DS or one of its clones that support N3DS 2DS 9.2 & Below can use a Gateway card - some versions of the 2DS console do have issues using a Gateway card, loading ROMs etc, users with these consoles fix the problem by installing games in .cia format, other versions of the console work fine 2DS Above 9.2 can use a Sky3DS card or one of its clones that support 2DS consoles What does sysNAND mean? The sysNAND of your console is the system nand or original console firmware What does emuNAND mean? emuNAND is an emulated version of you sysNAND that Gateway cards & CFW's use an exploit on that trick the console into thinking it is on a higher firmware than it is, emuNAND can be used to play games on the newest firmwares, use game updates & DLC's that require higher firmwares & access the eshop. Do I need to connect to the internet on my console to update my emuNAND? No - Updates can be installed in .cia format using DevMenu or BigBlueMenu, see this thread for more info Will Gateway ever support emuNAND over 9.4 for N3DS? Hopefully - It is something the Gateway team are working on & have been for a while now but hopefully they will support higher emuNAND versions in the future Can I play .3DS ROMs online with a Gateway card and not get banned? Yes - The safest way to play online is by injecting a private header of a game into your 3DS ROMs using Gateway ROM Patcher. Using one of the public headers that have been around on the net for a long time now isn't at all safe, these public are still being used by people online & they haven't been banned but there is always a risk as where the same header is being used it looks like the same copy of the game is being played on multiple consoles at the same time.