Upgrade or Install Samsung Galaxy S5 LTE-A SM-G906K to Android Lollipop 5.0.1. The firmware available for downloading http://www.sammobile.com/firmwares/database/SM-G906K/. You can download your Samsung Galaxy S5 LTE-A SM-G906K firmware at the page, available for some countries. How to Root for Samsung Galaxy S5 LTE-A SM-G906K is the separated post, this post only for upgrading to Android Lollipop.