Green and purple bars?
I know exactly what happened.
Your brick wasn't caused by cIOSCORP. It's caused by region info problems.
When you installed System Menu 4.1U, you didn't change your region settings from Korean to USA, did you?
Becuase of this, 4.1U is trying the load the Korean health screen, which it doesn't have, and so it throws a green and purple spaz.
Since you have cIOSCORP installed, I can help you, but you'll need a GameCube controller, and some way to hold down all 4 d-pad buttons (you may need to open the controller).
Do you have a GameCube controller, and some way to hold down all 4 d-pad butons?