I tried upgrading my ps3 to 500GB and now am stuck with error 8002F2C5 each time i power on the machine so i checked it up on google and discovered am not alone. Apparently silly sony released 2 updates with the same version i.e 3.56, the first update had a bug and if u try upgrading ur hard drive, u'll be so stuck like me with error codes. However if u use the second update (released sometime in February), the HDD upgrade will be a breeze.
I've followed numerous threads online, reading comments of people with a similar problem and it was mentioned that Sony engineers said the latest update 3.60 was going to fix this error but that ain't true. So before u go ruin ur ps3 all by urself, do urself a favour and update ur ps3.

Am really thik what am gonna do cos sony shud be held responsible here

Funny. How do you intend to hold Sony accountable for this situation?

Meanwhile have you rectified the error?