1. Find "Wi-Fi"

Press Settings.
Press Wireless & networks.
Press Wi-Fi.

2. Turn on Wi-Fi

Press the indicator next to "Wi-Fi" to turn on the function.

3. Turn automatic use of mobile data on or off

Press the menu icon.
Press Wi-Fi+.
Press the indicator next to "Wi-Fi+" to turn the function on or off.

4. Return to the home screen

Slide your finger upwards starting from the bottom of the screen to return to the home screen.