We are talking about this phone.
connect the phone to your pc, it is of MOST importance, that the phone is recognized as an ADB-device in your device manager
If it is not, the adb-drivers are missing. There are TWO possibilities to get those drivers:
Once your phone is recognized as an ADB-Device, you are ready to go.
Download Super One Click V2.2 and run it
Leave all the default settings and click on “Root”
You will be asked:
Sure, why not
You should now find a Superuser app on your phone, your phone should be rooted.
As a matter of fact, this USUALLY works with any MT6573 CPU phone, not just this model.
As always: YOU ARE DOING THIS AT YOUR OWN RISK