M8 just 2 posts lower is nearly same thing , why ppl go to 4.53 its pointless and bricks building up , try other 4.53 cfw , try rebuilt database , if console is NOR try swap hdd , otherwise is hardware flasher.
The hard drive is held in by one blue screw on the slim. You need to first lift the small square covering on the bottom of your unit and then you will see it. Once you have removed that screw the front faceplate where the hard drive is slides out to the right.
PS2 Games on Non-BC PS3 Consoles via Cobra 4.53 CFW by Habib Out
Following up on his previous release, PlayStation 3 developer Habib has now made available a PS2 SELF for running PlayStation 2 games on non-BC (non-backwards compatible) PS3 consoles via Cobra 4.53 CFW with details below.