Tap the Wi-Fi networking switch to turn Wi-Fi on. Note: To optimize battery life, turn Wi-Fi off when not in use.
Scroll to, then tap the desired network. Note: To connect to a hidden or unbroadcasted Wi-Fi network, scroll to the bottom of the page then tap 'manage' > Tap the + icon
If prompted, enter the required network password, then tap done.
When Wi-Fi is connected, the Wi-Fi icon will display in the notification bar. Note: Data transmitted over a Wi-Fi network does not count toward your AT&T data plan, and will not be billed.
To quickly turn Wi-Fi on or off, from any screen, swipe down from the notification bar.