I have a Lenovo Edge 15 laptop that has been brought to me and I am being asked to replace the keyboard because some keys are dead. Does anybody have experience with the Edge 15 assembly and disassembly? From what I can tell, the keyboard is a part of one entire piece and the mousepad is or can be separate. All online parts to be ordered either lack a mousepad or are out of stock. I just need a little guidance on this one.