Firmware update / Stock ROM : Samsung Galaxy J7 2017 SM-J727R4 to Android 7.0 Nougat. The firmware available for downloading https://www.sammobile.com/firmwares/SM-J727R4/. You can download your Samsung Galaxy J7 2017 SM-J727R4 firmware at the page, available for some countries. How to Root for Samsung Galaxy J7 2017 SM-J727R4 is the separated post, this post only for upgrading • Read More »