I had to dismantle my fat ps3 a long time ago to fix an issue, but due to a house cleaning in the meantime, I ended up losing the shell screws, which means the PS3's shell cannot stay properly closed, mishandling the console can result in it...
Sorry for bumping the thread, but i tried it on my Japanese PS2 scph-5000 with a stock dvd player version 3.02.
I did all the steps. I used kelf twin signer to copy the key from osdmain to dvdplayer.elf etc, then i copied it to my free mcboot...