I was installing a old 3ds with firmware 2.1 with arm9 using the github arm9loaderhax guide. i got to part 4 which is restoring your system and i updated my system to 11.2 before restoring the nandmin.bin of 2.1 that i had. now luma boots up and says " an old unsupported firm has been detected. copy firmware.bin in /luma to boot." im am not sure what to do at this point and would greatly appreciate any help i could get.