Black Screen Possible Brick

I'm sort of an old timer on Wii Hacks and I have been out of the circle for sometime now anyway, my wii was fully modded and someone in the household hit the update(bad move) now my wii has a black screen and does not play Any games.
I would like to at least be able to get my wii back to factory settings.
If you are willing to help I'm teachable, I will also need files and or programs.
I do have some files like
Bootmii
NAND
Keys.