Upgrade or Install Samsung Galaxy S6 Edge+ SM-G928S to Android Lollipop 5.1.1. The firmware available for downloading http://www.sammobile.com/firmwares/database/SM-G928S/. You can download your Samsung Galaxy S6 Edge+ SM-G928S firmware at the page, available for some countries. How to Root for Samsung Galaxy S6 Edge+ SM-G928S is the separated post, this post only for upgrading to Android Lollipop.