How Come when i use cwcheat for my psx games on my psp the cheats don't come out. Everything is correct. Game id of both the game and the list are both the same. But when I open the menu the cheats won't come out. I have tried everything and still nothing works.

Try pressing the select button for 3 seconds, there should be a menu showing the following options: select cheats,[Y] enable cheats, [N] enable dump.... The [ ] enable cheats must have a Y to enable the option. If you just select the cheats without enabling this option the cheats won't work.