Hello, I am currently trying to replace my X's LCD as its backlight blew from water damage. I have removed its Motherboard and top case but cannot seem to remove three of the screws holding the LCD to the digitizer. Ten of the screws were ordinary Torx T4 and I got them out, but three seem to be of some other type. They look like the T4 screws but without the star formation on them, just circular and my T4 screwdriver cannot get a grip. Anyone have an idea on what these three could be? Can't seem to find it in any guide with these screws. Thanks in advance!