Firmware update: Samsung Galaxy Tab A SM-T555C to Android 6.0.1 Marshmallow. The firmware available for downloading https://samsung-firmware.org/model/SM-T555C/. You can download your Samsung Galaxy Tab A SM-T555C firmware at the page, available for some countries. How to Root for Samsung Galaxy Tab A SM-T555C is the separated post, this post only for upgrading to Android 6.0.1 Marshmallow.
Tags: Android 6.0.1 Marshmallow, firmware update, Galaxy Tab A SM-T555C, stock rom