[App Share & Review] Simple Control - Lollipop Style Virtual Buttons
Simple control an android app that let you enable the android lollipop style virtual buttons without having android lollipop update. Check out this post it will help you to know about this app.
You have to first install the app then do the following things :
Go to Settings > Accessibility > Simple Control [Turn it "ON"]
Now open the app and in app setting you will find where you want to show these buttons on screen.
(Like left side, right side or bottom)
See the screenshots for more info