Hi, I been trying softmod a wii 3.4E and a 4.1E wirgin, but still no luck. Ive used many different guides and I have the same problem each time

When I use bannerbomb and am about to load the boot.dol/elf the screen goes black and the wii starts blinking - the wii totally frezzes. The Hackmii installer v0.2 never shows...

Can somebody please tell me what Im doing wrong???