A useful feature available on many Android phones is the ability to create Wi-Fi hotspots. This feature is available on any Android handset running Android 2.2 or better, so long as your wireless carrier allows it. Once you create a Wi-Fi hotspot, you'll be able to connect to it from your other mobile devices.
While there's no additional charge to use your phone as a Wi-Fi hotspot, the data used while you're doing so is counted and will show up on your monthly bill.
Android phones running Android 2.2 or better can be used to create Wi-Fi hotspots.
To check the version of Android that you are running go to Settings and then tap About phone. You'll see your Android version about three quarters down.
To create a Wi-Fi hotspot, go to Settings again and tap Wireless & networks. Next, tap Tethering & portable hotspot.
From this menu, tap Portable Wi-Fi hotspot settings. Now, tap Configure Wi-Fi hotspot.
Now, you'll need to give your network a name. This is the name that will be displayed to anyone joining your network.
Select a security setting. We recommend using WPA2 PSK.
Next, choose a password that's at least eight characters long. Tap Show password to see the characters that you're typing.
Back in Portable Wi-Fi hotspot settings, tap the box next to Portable Wi-Fi hotspot to turn on your hotspot. You'll see a blue Wi-Fi icon when your hotspot is active.