Not really sure how to troubleshoot the keyboard not working after replacing it on my Latitude E5520.
The mouse works (from the keyboard), the backlights are on, just no keys. Actually they have registered a couple times but in general not working. What is the next step?
Note: I noticed that when I hit a key it turns my computer out of power saving mode. So it seems the keystrokes are registered yet no keys can be typed.
Second Note: Plugged in USB keyboard. It worked until Windows 7 loaded. Then nothing.