Wi-Fi
Tap the Wi-Fi switch 
to toggle
it On or Off. Turning this feature on connects you to a Wi-Fi network
(from your list of available, detected networks). Tap Wi-Fi to access the following settings to manage your Wi-Fi connection.
WI-FI NETWORKS
The list of all of the Wi-Fi networks that are within access range. Tap one to access it.
Tap Search at the bottom of the screen to scan for available Wi-Fi networks.
Tap the Menu Key 
in the Wi-Fi menu to access the following options.
WPS Push Button: Information to connect to a secured Wi-Fi network with a WPS button.
WPS Pin Entry: Information to connect to a secured Wi-Fi network with a WPS PIN.
Add network: Allows you to add a new network.
Wi-Fi Direct: Allows direct connection with Wi-Fi devices without any access point.
Advanced Wi-Fi: Accesses the following advanced Wi-Fi settings.
Network notification: Checkmark to be notified of in-range open Wi-Fi networks.
Internet unavailable: Checkmark to disconnect Wi-Fi automatically when the Internet is unavailable.
Sort list by: Allows you to sort your Wi-Fi list by Signal strength or Alphabetical order.
Keep Wi-Fi on during sleep: Sets the Wi-Fi status during sleep. Choose from Always, Only when plugged in, and Keep Wi-Fi off (due to data usage).
Scanning always available: Checkmark to let Google's location service and other apps scan for networks, even when Wi-Fi is off.
Wi-Fi signal weak: Checkmark to disconnect Wi-Fi automatically when the Wi-Fi signal is weak.
Battery saving for Wi-Fi: Checkmark to minimize battery usage when Wi-Fi is on.
Install certificates: Allows you to install the certificates from external storage.
MAC address: Displays your phone's MAC address (which may need to be entered in the router to connect to some wireless networks with MAC filters).
IP address: Displays your phone's IP address.
Interactive tutorial: Allows you to learn about Wi-Fi through an interactive tutorial.