Hi! I have been searching the web for quite some time now, trying to find a reason to my troubles. First, I'll give you some specs: Model: PSP-1000 Firmware: 3.40 OE-A Memory Stick: Memory Stick PRO Duo Adapter for microSD with a 16 GB microSDHC inside it. So, I thought that upgrading would be as easy as it was back in the days. Well, I guess I was wrong. So, I've tried a couple of things: * Follow this guide: When I tried to run 3.52 M33UPDATE it just throw up the PSP start screen and then went to black screen. It stayed at the black screen for a couple of seconds and then turned off the system. If I start it up fast enough, it's still locked in the black screen, but if I wait or use the "Recovery menu" I can just exit from it. * Use Hellcat's Recovery Flasher v 1.60 and v 1.65 Tried to run it both from Recovery Menu and from the normal game menu. Both ended up the same way as the 3.52 M33UPDATE. Unfortunatley I don't have any UMD disks that I can try with, but when I tried loading FIFA 10 ISO (thought it would be old enough) with NO-UMD Disk enabled, I got an error, so it didn't went pitch black as the others did. Does anyone know how to fix this?