No, NFIRM downgrade doesn't itself install A9LH; you'd know if that were installed.Got my new 3ds working it seams...
The Exeidia exploit worked, but I cant get into the homebrew channel with any exploits so far... Agh, Im not sure if what I even did on https://3ds.guide/dsiware-downgrade tutorial even installed a9lh
Just so lost, feel so close to getting it done tho, just want my pokemon_sun.cia installed again
Did the DSiWare exploit actually, run though? Did you downgrade NFIRM?
That should be something you can see that it happened (or at least tried to) from the prompts actually appearing.
If you installed Steelhax for the right version into the game, you can try that out.
Otherwise, you'll need some sort of entrypoint to continue.