Formatted hacked 3ds

So I decided to hack my “new” 3ds and I have it to this store who also installed a bunch of games onto there and about a year later, I decided to return it to stock firmware because I wanted my things to be legitimate so my dad formatted my 3ds without knowing that we had to uninstall the cfw (custom firmware) and so I can still open god mode9, but have no luma, fbi or anenome or whatever those hacks were. I am still currently getting help from people that want to show me how to fix it or if it doesn’t work, I would just go to the store myself.