PSP Reviews – PSP Console, Games & Accessories

Few days ago, I bought a PSP 3000. The sellers told me, PSP 3000 can't play ISO/CSO games, unless it's hacked with Firmware. I asked the seller to help me to settle this. Everything was fine and all games ran normally. Yesterday, I didn't know what happened. Suddenly, there was no game displayed on my PSP3000. Only one application, GEN C. I selected it, then it said Game is corrupted. But when I connected my PSP to PC to check the game, all games were there, but can't be played. Does anyone know what was wrong? How to deal with it? I really appreciate your helps. Thanks