A "sticky" thread is one that is placed permanently at the top of a forum / category. Even if no one posts in it, it will still show up on the first page. This is often done for special announcements, rules / guidelines, and FAQs.
Most Sony, if not all, require the removal of the power bezel, maybe the hinges, the screws along the frame if any, and "prying" (separating) it away from the lcd cover. There are latches around the frame that just pop on and off