Tools
These are instructions on how to root the Lenovo A850 Plus (running on android 4.2.2) using the Root Genius Application on Windows Computer.
Requirements: Your Device should have at least 20-30 percent of battery to perform the rooting process.
(Developer Options are hidden for Android 4.2.2 and above. Go to Settings > About Phone > Built Number > Tap on it 5-8 times to display this option).
Congratulations! Your Lenovo A850 Plus smartphone is now Rooted. You can also verify the root status of your device by using the Root Checker App.
Readme Once:
[*] No data loss process: Your Phone Data like contacts, pictures, videos, music and etc will be not affected with the above method.
[*] RootGenius Android App: You can also root your Android Device through the official RootGenius Android App. If you wish, you can download the RootGenius Android App from here.
[*] Lenovo Stock Firmware: If you are looking for the original firmware for your device, then head over to Download Lenovo Stock Firmware page.
[*] Lenovo USB Driver: If you are looking for the original USB Driver for your device, then head over to Download Lenovo USB Driver page.
[*] Credits: RootGenius is created and distributed by SJRoot (Developer), so full credit goes to them for sharing the Application for free.