ive been using this website to try to get custom firmware https://3ds.guide/installing-arm9loaderhax my problem is its too confusing. i get to part 2 where it says Navigate to SDCARD -> ctrtransfer i boot up my 3ds and then i look for that folder and i cant find it. i tried skipping to section V where you inject fbi or whatever and then i load up the thing to open fbi and it just black screens. what am i supposed to do??