Before you throw it against the wall
How to Fix Chromebook Keyboard Not Working
Your Chromebook’s keyboard may not register keyboard input if it is dirty or has suffered water damage. Issues with your Chromebook’s operating system can also cause intermittent keyboard failure.
This article covers several solutions that can help you get your Chromebook keyboard working properly again. Some of the troubleshooting solutions in this tutorial require an external keyboard. Therefore, connect an external keyboard to your Chromebook if you have one. This will help you perform troubleshooting solutions that may require keyboard shortcuts or keystrokes.
You can also enable and use your Chromebook's on-screen keyboard while trying to troubleshoot the physical keyboard issues.
