I installed the cios and the backup launcher gamma but i put the disc in (Donkey Kong Jet Race) PAL and it just dont work just a black screen is it because i have 3.3u or would it be aonther reason ..........Im New and i did search for this and no luck
Its because of 3.3u. Find a guide on how to downgrade then redo everything you did to install it (Except for the Homebrew Channel since that won't leave unless you delete it)
It works on 3.3U. Did you try forcing NTSC? And if it still didn't work it could be because the game doesn't have an NTSC video mode.
