Q: Why is there no response when I plug in the keyboard and I can’t type? A: The keyboard has two modes, wired and bluetooth mode. The switch key is “Fn+R”. In wired mode, plug in the USB cable and press the switch key (“Fn+R”) to type. In bluetooth mode, you need to turn on the power switch and bluetooth switch of the keyboard (the upper right of the keyboard), press the switch key (“Fn+R”), turn on the bluetooth of the mobile phone, search for “7KEYS TW1867”, and you can type after the connection is successful.