Please read this ^
ok so i found this on wiihacks but after reading this i still don't get how to fix blackk screen problem so could somebody tell me how to fix this black screen problam by reading what is written in the link and if you can could you explain
This was one person's solution to a problem. There are a few reasons why this could happen.
Could be this solution or the harddrive itself spinning down ( going to sleep mode)
Or not having the correct ios's for the games you are trying.
This user gave his solution and it is explained what to do. other than coming to your house and doing it, there isn't much more to do.