I have a PS3, that currently away for repair (think i melted it playing Street Fighter 4) but have a Debug that i don't seem to be able to update!!!
I have downloaded the 2.52 and 2.42 FW from here but my Debug PS3 just cant seem to locate the firmware off my memory card even in the PS3 - UPDATE folders etc. Aw well, it'll all get sorted. Im looking forward to getting stuck in and adding to all the great posts, see you around.