triiforce running games

Okay i am confused on this but i have a wii system 4.2 and i can run wii ware and vc games fine ..

i have my brothers which can not run. It starts the screen up and then it locks the wii remote on the load screen of game. If i plug up a gamecube remote it works.

I read somewhere ... where i might have to

Just use DOP IOS to download and install IOS60 and Sig hash check it.

the problem is on a system with 4.1 installed

if i go into dop ios , which is version 9 , then go to ios 60 and then click yes on all three it says bad hash...not sure what is going on.