You can... You can even use Sky3DS in rxMode. Says so in the first post.
Edit: Misinterpreted your post,
Yes...
you can...
Oh that's perfect, thanks for answered !! I can now play online
No problem. just remember that rxMode right now is like Gateway Classic Mode without region free.
Yes thanks, but the thing is that in gateway 4.5 the savegame was removed, this is why I prefere ask because I am in 9.2 right now ^^
Yeah, if you are in 9.2 SysNAND, everything should work fine.