Same issue. You may find that the screen works but it's the back lights that aren't functioning. You can test this by angling a flashlight to the screen while the unit is on. You should be able to see the graphics but very dark. Another way is to connect the mini display port to an external monitor. This worked for me. Back to the issue. I replaced two screens and one costly cable but none of that helped. I have the option of connecting to a docking station. My Surface Pro 2 can no longer be used as a tablet.