Upgrade or Install Samsung Galaxy Tab4 7.0 SM-T235 to Android Lollipop. The firmware available for downloading http://www.sammobile.com/firmwares/database/SM-T235/. You can download your Samsung Galaxy Tab4 7.0 SM-T235 firmware at the page, available for some countries. How to Root for Samsung Galaxy Tab4 7.0 SM-T235 is the separated post, this post only for upgrading to Android Lollipop.