At first download iRoot
2) Now install iRoot on your PC Running Windows OS.
3) Turn on USB Debugging on your phone from Settings>Developer Options.
4) Now connect your phone with your PC via USB Cable… Internet Connection on your PC must be turned ON.
5) Now open iRoot on your PC… Let it detect your phone.
6) And then press on Root button on iRoot. Wait some time, then your
phone will reboot automatically and it will show “Android Is Upgrading”…
7) A Chinese SuperUser will appear.
8) Now download Kinguser
9) Install Kinguser.apk as the way you install normal apk…
10) Done your successfully rooted…stubborn
5) Now open iRoot on your PC… Let it detect your phone.
6) And then press on Root button on iRoot. Wait some time, then your
phone will reboot automatically and it will show “Android Is Upgrading”…
7) A Chinese SuperUser will appear.
8) Now download Kinguser
9) Install Kinguser.apk as the way you install normal apk…
10) Done your successfully rooted…stubborn