The most known feature in Android devices is available to create Wi-FI Hotspot on 3G. Wireless 3G internet connection might not be fast or stable as compare to the Wi-Fi but could be great for checking emails and browsing. If we take a look on Android devices earlier than Froyo, we see the Android apps such as PDAnet which can provide the wireless tethering function on your Android.
Later after the release of Android Froyo, the wireless tethering function available with OS itself. So creating wi-fi hotspot on 3G using Android phone is not so hard as we think. but with the release of Froyo, this capability has been inbuilt into the OS itself.
Step by step guide to create Wi-Fi hotspot on 3G:
Step 1: Verify that your phone is running Android 2.2, Froyo
The first thing is to verify that your device is running with Android OS 2.2 or later. You can check you Android OS version from Menu button > Settings > Scroll to bottom and tap on “About Phone”. You will see the number under “Android version” and it should show 2.2 if you are running Froyo.
Step 2: Setup your Android
Once you know that you are with Android 2.2, Froyo, then tap the “Back” button > Scroll to the top of the screen > Tap “Wireless and Network” button. where will find an option called “Tethering and Portable Hotspot”. Tap on it and tick the option called “Portable Wifi hotspot”.
That’s All! You will get a notification that your phone has been configured to act as a hotspot for any wireless devices in range of your phone. But the things doesn’t end all over here, you must secure your Wi-Fi Hotspot connection and can go to the further steps.
Step 3: Security
As long as security concern, you can protect your Android hotspot to restrict misuse of internet access over 3G. For security reasons, you can add WPA2 PSK encryption to it. In order to that, go back to the “Wireless and Network” menu, choose “Tethering and Portable” option and tap the “Portable Wi-fi hotspot Settings” button.
Tap the “Configure Wi-Fi hotspot” button and under Security, choose the “WPA2 PSK” option. Then, you will be asked to enter a password with exactly 8 characters. Tap “Save” and your network is now secured.
Note: You can also rename your Android wireless hotspot to another unique name under above setting.
Step 4: Connectivity now requires password
Now any other devices that want to get connected with your created hotspot will required password that you use in step 3. This will ensure that no one else is using your network bandwidth allocation.
Step 5: Wired Connectivity as an Alternative
You can also choose to share your 3G connectivity via USB. Plug your Android into a computer/laptop using a USB cable > Tap on “Tethering and Portable hotspot” menu > Tap on “USB Tethering” option.
Watch a demo of wireless tethering function available in Android 2.2: