With or without menuhax?
If you don't have menuhax, you're screwed as you will need a game to enter HB launcher instead of browser+menuhax.
To start the guide on 11.0/11.1 you either need another hacked 3ds for the dsiware exploit or a hardmod for both the NATIVE FIRM downgrade, so you can successfully downgrade to 9.2 via the homebrew launcher(after NFIRM downgrade with one of those 2 options)