Hi, I am driving myself nuts trying to figure out how to remove the bottom casing of my laptop. its an ASUS X550ZA-WB11,...there are about 10 screws at the bottom but aside from that I cannot tell what else needs to be done in order to remove the bottom of the laptop casing. none of the keyboard keys appear removable. has any one had an opportunity to take apart one of these suckers..?? :facepalm: thanks.