These are instructions on how to root Jiayu F1 (running on android 4.2.2) using Framaroot App.
Requirements: Your Jiayu F1 smartphone should have at least 10-20 percent battery to perform the rooting process.
Optional: You can also verify the root status of your device by using the Root Checker App.
[*] No data loss process: Your Jiayu F1 Phone Data like contacts, pictures, videos, music and etc will be not affected with the above method.
[*] Device Warranty: Once you fully unroot your device through SuperSU, you can claim for the phone warranty. In short no need to worry about the phone warranty.
[*] How to unroot: To unroot, Open SuperSU > Settings > Full Unroot.
[*] Credits: Framaroot App is created and distributed by Alephzain (XDA Developer). So, full credit goes to him for sharing the app for free.