I have a psp that has a brand new UMD laser in it, and it still won't play any UMDs. It is an IC6001 model. It keeps giving me the "disc cannot be read error". It currently has 3.0.3 fw on it that is unmodded. I can see the laser moving left to right and the head moving up and down, but I don't see any red light on the laser being on. Is it a motherboard issue? Everything else works on it. I do know that it could've been upgraded and messed up before I got it, since I did the download of ver 3.0.3 on it last December. Thanks.