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, 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.