I just received my GW3DS and I'm on 2.0b1 with EmuNAND. I can play ROM's fine, but I was wondering if I can update EmuNAND to the latest version to play Pokemon Y from a Cart? Will this affect any features? I assume I will need minimum 7.0 EmuNAND as Pokemon was saved on a 7.1 3DS.
There are two way to update EmuNAND.
1: full
Require Online, and GW 2.0b2
Will update eshop version
Launch emuNAND, go to settings, verify that you have GW3D 4.x written in the settings and go directly to Other option > Update
It will update to 7.1.0-15
2: partial
Doesn't require Online, Works with GW 2.0b1 and GW2.0b2
Will not update eshop version
Launch emuNAND, insert Pokemon, accept the update.
It will update to 6.1.0-x or 6.2.0-x (x = eshop version you currently have on your system).
The issue is that you can't play online with the partial method, because there's a game update available, and you need latest eshop to download it.
If your console has wifi enabled, you can't launch the game without the update.
It would work for all other games without updates available.
if you need to play online (which is the game interest), you should go with 2.0b2, update fully, access eshop, download the update to SD card, go back to 2.0b1 (with 7.1.0-15, but you won't have access to settings/region free). If you want settings and region free for ROMs, you will have to make a new emuNAND and update partially (the game update will still be available on your SD card to play online with 6.2.x).