Hmm try using JKSM and see if that works. It takes a few tries to get these to work with just homebrew.No CFW, been using Homebrew via Freakyhax
I tried SVDT and the Save Manager packaged with the Homebrew Starter Kit, both worked fine for Tomodachi Life, Fantasy Life, and a couple other games.
I really recommend you install A9LH while it's easy to do before the next update, but obviously u don't have to.