Hi all, I installed cios rev9 on my wii (3.3U) yesterday and I accidentally upgrade wii to system menu 4.0 from Nintendo. I can still play backup game. However, I was not able to install new wad nor connect to Internet. I would like to fix this problem by 1) apply necessary patches to make system 4 work. or 2) downgrade to 3.3U. Any idea?