When you use your mobile phone as a Wi-Fi Hotspot, you can share your mobile phone's internet connection with other devices via Wi-Fi. Before you can set up your mobile phone as a Wi-Fi Hotspot, you need to set up your mobile phone for internet.
Slide your finger downwards starting from the top of the screen.
Tap All settings.
Tap Network & wireless.
Tap Mobile hotspot.
Tap the indicator to turn on the function.
Tap the edit icon.
Tap the field below "Network name" and key in the required name.
Tap the field below "Network password" and key in the required password.
Tap the confirm icon.
Tap the Home key to return to the home screen.
Turn on Wi-Fi. Find the list of available Wi-Fi networks and select your own Wi-Fi Hotspot. Key in the password for your Wi-Fi Hotspot and establish the connection. When the connection is established, you can access the internet from the other device.