Firmware update: Samsung Galaxy J2 SM-J210F Android 6.0.1 Marshmallow. The firmware available for downloading http://www.sammobile.com/firmwares/database/SM-J210F/. You can download your Samsung Galaxy J2 SM-J210F firmware at the page, available for some countries. How to Root for Samsung Galaxy J2 SM-J210F is the separated post, this post only for upgrading to Android 6.0.1 Marshmallow.