Hacking Black Screen = Bricked?

[cplater]

I have a launch Wii that was / is softmodded. The kids were away for a week, and on returning, when they tried to turn it on it would lock up either at the Warning screen, or shortly thereafter on the Wii System Menu. I tried restoring the NAND from backup, and now it consistently locks up on the health warning screen before the "Press A" is displayed. I have BootMii installed, and I can get the homebrew channel to load, but if I try to launch any homebrew apps, all I get is a black screen.

Can anyone suggest a fix? Thanks in advance.

 

[mauifrog]

make a fresh clean nand with ohneswanzeneger, giantpunes nand.bin formater.

 

[Luigi2012SM64DS]

http://gbatemp.net/topic/279750-ohneswanzenegger-wii-entry-pc-software/

 

[cplater]

make a fresh clean nand with ohneswanzeneger, giantpunes nand.bin formater.

Many thanks. I'm still unsure what caused this, but grabbing ohneswanzeneger and building a new 3.0U nand.bin did the trick for me.