https://908labo.com/2017/11/11/fujitsu-fmv-lifebook-ah45k-how-to-replace-keyboard-disassembly-%e5%af%8c%e5%a3%ab%e9%80%9a-%e3%83%a9%e3%82%a4%e3%83%95%e3%83%96%e3%83%83%e3%82%af-%e3%82%ad%e3%83%bc%e3%83%9c%e3%83%bc/