It happened to me. I have an original 60GB PS3. One day it says there is a system update, just like all the previous ones. Press a button to download it, start it off, it gets halfway through, then the screen goes black, and game over. Nothing would revive it, not switching hard disks, not the service menu options, nothing. I do believe it broke something in the hard disk interface somehow. I ended up buying a new slim PS3, but I am very upset since my old PS3 had hardware backward compatibility, one of the main reasons I bought the thing, as I have many PS2 games.