Ensure there are no typos in game.txt or pops.txt . Check that you didn't accidentally save them as game.txt.txt .
Assuming you have a CFW like 6.61 PRO-C installed, connect your PSP to your PC via USB. cwcheat psp 6.61
Ensure your cheat codes match your game's specific region ID (e.g., ULUS for US, ULES for Europe, ULJM for Japan). Using US codes on a European ISO will result in a hard crash. 3. Cheats Aren't Showing Up in the List Ensure there are no typos in game
for about 3 seconds. The game will freeze temporarily, and the black-and-blue CWCheat text overlay menu will appear. ULUS for US