I've been trying to use some of the display screens from this site in my nw-e405 but i cant get them to work. Looking around in other threads, i see they will only work with the 2.0 firmware. Sony's website says that if my serial number is bigger than 5058146, then i dont need to update. Since this is the case for me, I'm kinda confused as to what to do. What do you guys think? P.S: hi, i'm new here