Under Settings>External Device Manager>Input Device Manager>Bluetooth Device List do you see your keyboard listed? You should be able to select it and pair from that menu. I actually ran into an issue where I had no option for bluetooth device list. To fix mine I had to open the engineering menu by turning TV off then hitting mute, 1, 8, 2, power on in succession. That should bring up a small menu on your screen with a blue background and white text. To fix mine I selected SVC, then Upgrade, then BT UPGRADE at the bottom. After it finished the BT upgrade I now had the bluetooth device list and was able to pair up with my keyboard. You can also check that BT is enabled by selecting the Option menu then MRT Option then making sure BT Support is set to ON. Those are the 2 things I can think of that should enable it. Hope that helps.