So my neighbor's wii was not reading discs. I thought it was the laser, so I went out and bought a laser for it. I installed it, and its still not reading discs. Now at some point, they had bootmii installed as well as homebrew channel. I don't know if they messed it permenantly, but its still not reading discs, even though its on virgin 4.3u. Why is it acting up like this, and what can I do to fix this?