The type cover (regular, not fingerprint one) for my Surface Pro 4 was working fine until the latest update. Now I'm getting an "Unrecognized USB Device" error when connecting it. A co-worker has a SP3 and I tried his type cover, same thing...but my type cover works fine on his SP3. I've tried removing the USB drivers in device manager and re-discovering them, but no luck. Any help or suggestions would be much appreciated. Thanks.