Hi, I can't find my answer on other threads:

Here is my situation:

1-Black Screen at Wii boot
2-I can manage to go in recovery mode (I see the bottom right inscription 4.2(USA))
3-I have a WiiKey 1 installed
4-When I try any of the supposed autoboot discs, it does nothing
I tried universal unbrick disc version 2
I tried last chance unbrick disc version 3

What am I missing to start up those discs?