How to remove keyboard from Lenovo ThinkPad T420s - YouTube
Replacing a Keyboard on a Lenovo T410 Laptop - YouTube
Amazon.com: Compatible Laptop Keyboard Replacement for Lenovo IBM Thinkpad T400s T410s T410 T510 W510 T420 T520 T520i W520 W520i Series P/N: 45N2141 45N2071 45N2211, US Layout Black Color : Electronics