IMPORTANT - Before v start i want to warn u that rooting is never 100% safe. So dobit own ur own risk. Though i have never heard about a phone getting a hard brick with this method, rooting is like trying to attempt a bull's eye with your eyes closed.
STEP 1 : CREATE A BACKUP
In case everything fail's u could still recover anyway so u are a bit on the safe side. Check out this link it will guide u in many ways. - Android Backup Without Root: The 4 Best Options For Your Device
STEP 2 : CHARGE UR PHONE UPTO ATLEAST 70% OR MORE
This does'nt need any explanation. Most of the battery is drained because ur phone gets rebooted many times during the process.
STEP 3 : INSTALL APK
This app is very well known and can root many of the devices. Though sometimes ur phone's name is not there in the list but still it is possible to root using the app.
STEP 4 : FOLLOW THESE STEPS
Simple, easy, and straight forward steps just for u
STEP 5 : CHECK IT YOURSELF
Once u find a suitable exploit a message will appear saying something like "ur phone is rooted, please reboot". Do as it says and then after restarting download this app to ensure ur phone is ready.
That's it now explore the world of innumerable choices.
