Sharp AQUOS Crystal - Manual (Page 359)

Settings 350
The Wi-Fi settings menu appears.
3. Touch the Wi-Fi slider to turn Wi-Fi on .
Wi-Fi is enabled. You will see the names and security settings of in-range Wi-Fi networks.
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To disable Wi-Fi, touch the slider again .
4. Touch a Wi-Fi network to connect, enter the password (if it’s not an open network), and then
touch Connect.