Upgrade or Install Samsung Galaxy Tab 4 SM-T531 to Android 5.0.2 Lollipop. The firmware available for downloading http://www.sammobile.com/firmwares/database/SM-T531/. You can download your Samsung Galaxy Tab 4 SM-T531 firmware at the page, available for some countries. How to Root for Samsung Galaxy Tab 4 SM-T531 is the separated post, this post only for upgrading to Android • Read More »