As per title - I have been at my daughters all day doing an SSD upgrade (2 drives, one the original the other a new SSD) for her. She has the same model as myself i.e. mid-2011. I was sucked in with the OCW videos not realising that they must use magnification for the instructional videos. My face must have been a picture when on removing the screws for the LCD screen I saw for the first time just how fine the wires are and how terribly small and delicate the connecters are. I put all the screws in different containers and labeled them plus I had my Tablet on hand to keep updating myself with the video. I have managed to do it only chewing up the end of one connecter with my sharp nosed pliers (the connector refused to come away. Luckily no real damage done. It really isn't a job for the faint hearted though. I held my breath when I finally turned it back on. However, it started with no problems. I need a strong drink now.