Firmware update / Stock ROM : Samsung Galaxy S2 SM-T815Y Android 7 Nougat. The firmware available for downloading https://www.sammobile.com/firmwares/galaxy-tab-s2/SM-T815Y/. You can download your Samsung Galaxy S2 SM-T815Y firmware at the page, available for some countries. How to Root for Samsung Galaxy S2 SM-T815Y is the separated post, this post only for upgrading to Android 7 • Read More »