Upgrade or Install Samsung Galaxy Note 4 SM-N9109W to Android Lollipop 5.0.1. The firmware available for downloading http://www.sammobile.com/firmwares/database/SM-N9109W. You can download your Samsung Galaxy Note 4 SM-N9109W firmware at the page, available for some countries. How to Root for Samsung Galaxy Note 4 SM-N9109W is the separated post, this post only for upgrading to Android Lollipop.