I have been running a 3.03 psp, not sure which version of 3.03 but it's been working great until I put in a UMD to play (GTA Liberty) and all of a sudden it just froze up. The power light is lit green and I can tell the screen is on but there is nothing there. I removed the battery and when I start it, it accesses the memory stick and I can hear a disc spin but then it just stops and the light stays green. I can enter recovery mode but nothing seems to get it back. Any help is much appreciated.