Hey I bought this wii that was already soft modded and the version is 4.2U. The problem is it seems to only play older burned games. I can't play the new ones that I burned onto a cd like New Super Mario Bros(I'm using CD's because it doesn't seem to detect my USB drive for some reason). It detects that it's New Super Mario Bros, it shows the graphics, I hit start and it just takes me back to the main menu. Im thinking I should upgrade to v4.3U to see if that lets me play the newer games. What is the best method to upgrade to softmodded v4.3U without bricking my system. Keep in mind that I have no idea how the previous owner softmodded the Wii. Thanks