I bought a Bluetooth keyboard and it worked beautifully for 2 days. I then unpaired it to use on my friend's tablet and it worked amazingly well on hers as well. When I went to re-pair the keyboard to my Note 10.1 it shows up in the Bluetooth devices list, but the box to type in the code will not come up and there is no settings cog next to the name like there should be. So the keyboard has become useless as I can not for the life of me find a way to re-pair and connect it to my tablet. I am running android 4.1.2. Please help as I need this to work for school. I purchased this to take notes in class.
This behavior is typical of some sort of internal error, you could try restating your bluetooth service. If this doesn't work a quick reboot is likely to solve your problem.
The Samsung Rep at my local Best Buy figured this out.
1- goto Settings/Applications/Applications Manager
2- select BLE Scanner, then click on CLEAR DATA
3- select Bluetooth Pair, then click on CLEAR DATA
4- restart the tablet