Upgrade or Install Samsung Galaxy S5 SM-G900S to Android Lollipop 5.0/5.1.1. The firmware available for downloading http://www.sammobile.com/firmwares/database/SM-G900S. You can download your Samsung Galaxy S5 SM-G900S firmware at the page, available for some countries. How to Root for Samsung Galaxy S5 SM-G900S is the separated post, this post only for upgrading to Android Lollipop.