So obviously This person hasn't done their research, because technically you can get the homebrew channel through powersave using OoTHax... IF you can somehow acquire the appropriate save file from friendly users who have the same 3ds and firmware who could supply you with it. My post here
https://gbatemp.net/threads/oot3dhax-powersave-edition.401799 explains how i used powersave to get homebrew for version 10.2 on my n3ds but maybe someone can get you the save file to use for your 3ds and version, if you ask around nicely enough