I bought an old fat model PS3 wth the 2 USB ports serial CK027868201 CECHK01 for $25 at a garage sale. the guy said the hard drive was corrupted. Me being a newbie thought, hell i have a couple hard drives at home, i will swap and be fine. When I got home the PS3 turned on to a RSOD. Before I found this site i followed a basic tutorial and popped in a new HD after formatting on the computer, entered into service mode, and updated system with a USB drive containing the latest 4.11 that I downloaded from sony's website. It reformatted and then proceeded to have me press the select and start button to load the update, but it hung at 99% for hours and then returned to RSOD. i have tried several drives with the same result. I have probably wasted $25 but thought I would check with you guys first before i pitched the thing out.