1. Download below Files :
ADB Installer 1.4.2
Download This iRoot 188.8.131.5254 Application For PC
Install all the drivers and applications that you have downloaded
After that open your mobile phone settings and follow below settings.
goto >> about >> click 3 times on build number >> dz will give u developer options on your settings. >> open developer options from settings and tick on android debugging.
then Connect your mobile phone to your pc.
and open iroot app from pc it will detect your mobile ph. and it also installs some additional files for about 30MB.
After that the iRoot will install 3 Chinese apps on your phone. Do not do anything with it, let it complete on its own.
If everything goes well you will see the green Root button. Click on it.
Make sure the phone is fully charged and you have UPS backup on your computer. Any interruption after you click the Root button in iRoot can make your phone unusable. So take huge precautions during the process. (You've been warned now)
Wait for 2 mins now and don't do anything. The phone will restart after the process is completed. You can see the ongoing status on iRoot itself.
After successfful completion you will see the below screen on iRoot app on your computer screen.
Congrats, Your Phone is now rooted...!
Download SuperSU app from Play Store and install. Open SuperSU, the Chinese app will pop up so as to grant SuperSU root permissions or not, remember to tap the RIGHT button in the Chinese app which is a YES.
Download Root Cleaner and uninstall all the Chinese apps from your phone, you do not need them anymore now.
Update your SuperSU binaries and reboot the phone.
That's all. Enjoy!
Say Thanks To Him >>
All Credits Goes to >> NabaKumar
See His Original Post Here