I have a full brick and I was going to try and use savemii to see if it works but I dont have any softmod programs installed I tried to downgrade and ended up with a brick. I have 4.1u and I was wondering is there anygame out yet with 4.2 system update that I could use with savemii I have looked everywhere. All I had installed was HBC and then tried to downgrade and bootmii was only installed with IOS i do have a nand backup from boot mii but I dont know if that would be of any use. The wii is still under warranty but I'm not sure if nintendo would be able to see HBC if they unbricked it.
i think it downgraded the ios i didnt know what happened so i guess my best bet is to send it to nintendo then have them send me another.