So my friend asked me to put win8.1 on her Asus X552LDV laptop and after i installed it and the drivers from the attached CD, i couldn't find Bluetooth. she had to take her laptop, so i can only help her over the internet, but even when she downloaded and installed bluetooth drivers from the Asus website she couldn't turn bluetooth on. And if she presses FN+F2 only the airplane mode switches on. What should i do to make the bluetooth work?