After a series of operations in the figure, you will find that backspace is also a backspace key, and there is a Xiao Jian with a signal image with an indicator light. You can surf the Internet wirelessly when the white light is on, but you can't surf the Internet wirelessly when the yellow light is on. When you press this button for a few seconds, the yellow light is on and you can't surf the Internet wirelessly. When you press this button for a few seconds, the white light will light up and you can surf the Internet wirelessly.
Please give a good evaluation if it is correct.