Firmware update: Samsung Galaxy Tab S2 SM-T819C Android 6.0.1 Marshmallow. The firmware available for downloading https://samsung-firmware.org/model/SM-T819C/. You can download your Samsung Galaxy Tab S2 SM-T819C firmware at the page, available for some countries. How to Root for Samsung Galaxy Tab S2 SM-T819C is the separated post, this post only for upgrading to Android 6.0.1 Marshmallow.