You must connect your Amazon Kindle to Wi-Fi to purchase and download new books (unless you have paid for a Kindle with built-in cellular connection). Fortunately, this is easy and should only take a moment.
To connect your Kindle to a Wi-Fi network, navigate to its home screen. Then locate the menu icon (the dots in a vertical row) in the upper-right corner of the Kindle's display. Choose it. In the menu that opens, select Settings . Then select Wi-Fi and Bluetooth .
The Wi-Fi and Bluetooth section displays a number of options. Before continuing, let's talk about the flight mode: you want this option to be set to the off position. When Airplane Mode is enabled, your Kindle can not send or receive wireless data.
After making sure the airplane mode is disabled, select Wi-Fi Networks directly below it. This will open a list of all Wi-Fi networks within easy reach of your Kindle. If the desired network is not displayed, tap Rescan in the lower-right corner of the options area.
When you see the network you want, tap it. This allows you to enter the password of the network.