Those screws were tight, I think I had just the right size screwdriver the screws came out fairly eazy and without getting the head stripped ..one of my friends try to do it to his ps3 and he use a pretty big screwriver and stripped 2 screws,he made the switch but right now only 2 screws hold his harddrive in place .. You were lucky gettin sony to extend your warranty .. I should try to see if im lucky.