Update or Install Android Lollipop 5.1.1 Firmware onSamsung Galaxy S6 SM-G920F. The firmware available for downloading ( Update September 21, 2015 at http://www.sammobile.com/firmwares/database/SM-G920F/ ). You can download your Galaxy S6 SM-G920F firmware at the page, available for some countries. How to Root for Samsung Galaxy S6 SM-G920F is the separated post, this post only for upgrading to Android Lollipop 5.1.1.