The iPhone is a quad-band Global Systems for Mobile Communications-based (GSM) smartphone that also functions as a pocket computer. Many features on the iPhone, including the ability to surf the web, check your email and download and install applications, require either a cellular data or Wi-Fi connection. If you don’t have a data package from your cellular service provider, you will need to activate the Wi-Fi on your phone to use many of the iPhone’s features.
Tap the “Settings” icon.
Select the “Wi-Fi” option and move the switch to the “ON” position
Select an available Wi-Fi network. Once you turn the iPhone’s Wi-Fi on, the iPhone will automatically search for and list the available Wi-Fi networks. Secured networks will display a lock icon to the right of the network’s name.
Enter the network password when prompted if you are attempting to connect to a secured network.
Wait for your iPhone to connect to the network. Once connected, you will find a check mark to the left of the network’s name.
Use your iPhone as normal to surf the web, check your email or download and install applications. Once connected to a Wi-Fi network, your iPhone can perform all functions as if it were connected to a cellular data connection.