How To Fix A Chromebook Keyboard

If you're having some Chromebook keyboard problem, the first thing you might want to try is hard reset your Chromebook to fix the hardware malfunction. Here is how to hard reset your Chromebook (note: Instructions to hard reset your Chromebook might be different based on the model):

1. Turn off your Chromebook.
2. On the keyboard, press Refresh  + Power .

reference: https://support.google.com/chromebook/answer/3227606?hl=en