Upgrade or Install Samsung Galaxy J5 SM-J5008 to Android Lollipop 5.1. The firmware available for downloading http://www.sammobile.com/firmwares/database/SM-J5008/. You can download your Samsung Galaxy J5 SM-J5008 firmware at the page, available for some countries. How to Root for Samsung Galaxy J5 SM-J5008 is the separated post, this post only for upgrading to Android Lollipop.