Sharp AQUOS Crystal User Manual page 324

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.

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.
 Your phone is connected to the Wi-Fi network. You will see (
Settings
.
.
) in the status bar.
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