How to get the keyboard sync with Tab: 1.Please fully charge the keyboard and turn it on, the light comes on and then goes off. 2.Press the "FN+C" to open keyboard's bluetooth. note:please press"Fn""C" together. 3.Go to your tablet settings, click on bluetooth and look for the keyboard. 4.Click on the keyboard and it will connect. 5. please press"Fn""Q" together, it will open Android system. then the keyboard case can work well. IMPORTANT: No.1:Please press "Fn" and "C" together to open the bluetooth. No.2:Please press "Fn" and "Q" together to open Samsung system. No.3:The keyboard automatically enters Sleep mode when it doesn't work for over 15 minutes. Click any key to activate the keyboard. No.4:The Bluetooth pairing is automatically interrupted when the tablet is in sleep mode.