I have been unsuccesfully trying to get a type cover to work on my surface pro 3. I know the type cover is not faulty as I have tested it on another surface and it works fine. I have gone through the typical reset, and boot to bios hard reset, with no luck. Cleaned the terminals with rubbing alcohol and even tried the eraser trick. Nothing shows in device manager in reference to a surface cover and I have updated all my windows updates. The keyboard LED light does not even come on. Am I dealing with a defective port? Is this something that can be replaced easily? I have run out of ideas.