delete your gamesave from ps3, go into cod4, play a match, exit out, re-copy your save to USB, then put your codes back into your gamesave, then copy back to ps3, bypass and test your codes, this usually works for me.
Hi
did you try your hack offline n split screen ? if it work your hack has no problem
2nd
make sure you wait in the main menu for about 20 sec because you need to pass the massage saying downloading setting . understood