Keyboard USBs are plugged in but keyboard not working. Once the debris is clear, gently place the key in its proper location and firmly press down until you hear it click into place. Once it is separated, check for any debris under the key itself or on the keyboard.
Press down the power button for 1 or 2 minutes. Turn Off the laptop and remove its battery. Here you have power cycle the laptop by following the steps mentioned below: Remove the Power Adapter from the laptop. This is one of the most successful fix for the laptop keyboard not working problem.If you are new to the keyboard, and you are not sure, then look for such keys or check the manual. When I touch it for the fourth time, it lights up the keyboard back to the maximum.
