Try updating all drivers first. Drivers can be updated from manufacturer websites. Have you spill any liquid on the keyboard. Can an external keyboard work on the laptop.Get one from a friend or someone that has it and plug in the external keyboard into the laptop and see whether can you type anything.
jingda
Industrious Poster
4,702 posts since Mar 2011
Reputation Points: 182
Solved Threads: 146
Skill Endorsements: 1