Wi-Fi
Drag the icon on the Wi-Fi switch 
to the right to turn on Wi-Fi functionality to connect to
available Wi-Fi networks. Drag it to the left to turn it off.
Notify Me: Checkmark to be notified when a Wi-Fi network is in range when you launch an application.
Optimize Wi-Fi usage: Opens a dialog box to optimize Wi-Fi usage when launching applications or uploading/downloading large files.
WI-FI NETWORKS
The list of all of the Wi-Fi networks that are within access range. Tap one to access it.
NOTE
Tap SEARCH at the bottom of the screen to scan for available Wi-Fi networks. Tap ADD NETWORK at the bottom of the screen to add a new network.