Rooting or jailbreaking of Android actually unlocks it giving you the access of the system that is not achievable otherwise. You can read more information about rooting at http://www.mobistealth.com/how-do-root-my-android-device.php. To root an android phone or tablet, you may please follow the simple steps below. Although simple, this need to be carried out carefully as the process involves security risks as well that might harm the device.
Among several programs that offer rooting, Kingo Root is most reliable and popular one. However, to use this program, you need to make sure your device falls in its compatibility list.
Please refer the URL, https://www.kingoapp.com/android-root/devices.htm to check for compatible devices and other information. If your device is on the list then do the following to root it:
1) Download and install Kingo Android Root on your PC.
2) Enable USB debugging mode on the device. To do so, please follow one of the paths below as according to the Android version of your device.
Settings > Developer Options > tick the box "USB Debugging" (Android v4.0 or 4.1)
Settings > About Phone > Developer Options > tick the box "USB Debugging" (Android v4.2)
Settings > About Phone > tap Build Number seven times and you should see a message, "You are now a developer!". Once this is done, go to Settings > About Phone > Developer Options > tick the box "USB Debugging" > OK. (Android v4.3 and above and some devices of v4.2)
3) Run Android Root installed app on your PC and then connect your Android device via its USB cable. Once both get connected, your device screen may show a pop-up 'Allow USB debugging?'. Check mark the box against 'Always allow from this computer' and tap OK.
4) Click Root on the software and let the program does the process. Once this completes, you will get a message that your device has successfully been rooted.
Note: SuperUser icon appears on Apptray when device is rooted with specific programs only. It does not appear with Kingos rooting program.