Laptop detects keyboard but keyboard dosen't work.
So I have a Y570, replaced the thermal paste. After replacing it , the screw for the keyboard dosen't thighten up and is stuck spinning. Tried almost forever to spin that screw but it won't tighten up. I tried removing it but it won't come out too... Gave up then booted on my laptop. After booting it on, I noticed that my keyboard won't work. I checked the device manager if it can detect my keyboard and it says it does. Anyone have any idea how to fix this? Right before I replaced the thermal paste it was working just fine. Tried taking out that screw also but it won't just come off. Hardware problem or software?