I see... Thanks for the help!
I described the steps I took in this topic: https://gbatemp.net/threads/how-to-install-legit-cia-on-n3ds-using-fasthax-and-fbi.455485/
It is very simple, but takes quite a few tries to launch FBI.
actually a better way im formatting emunand now i just downgraded 11.2 to 2.1 launched gateway and bam
You downgraded 11.2.0-35 to 2.1? How?