Use Luma, and you can run emuNAND9 from homebrew to create an emuNAND.I just downgraded my 3ds to 9.2.0-20U and I would like to know how to get emunand. I dont want to install arm9loaderhax.
Here you go.
http://gbatemp.net/threads/tutorial...luding-emunand-coldboot-cia-installer.405589/
But IMO, installing arm9loaderhax is now much easier, even easier than setting up emunand then installing menuhax.