Upgrade or Install Samsung Galaxy S5 Duos SM-G9009W to Android Lollipop. The firmware available for downloading http://www.sammobile.com/firmwares/database/SM-G9009W/. You can download your Samsung Galaxy S5 Duos SM-G9009W firmware at the page, available for some countries. How to Root for Samsung Galaxy S5 Duos SM-G9009W is the separated post, this post only for upgrading to Android Lollipop.