Well it has a sd slot but there was no sd card in it so I don't know which format it needs to have.
I tried an ad in fat32 and one with NTFS with a payload.bin reinx.bin and a boot.dat on it but it didn't even turn on when in rcm. If the switch is in horizon the led turns green so it doesn't...
Sorry I have to ask this but I am a total noob when it comes to wii u (just created an account for this).
Is there a guide on how to use this particular fw.img to sigpatch the sysnand? Because I too don't see much use in rednand except for the sigpatch. The git hub itself doesn't help that much.