Firmware update / Stock ROM : Samsung Galaxy J2 SM-J250G to Android 7.1.1 Nougat. The firmware available for downloading https://www.sammobile.com/firmwares/SM-J250G/. You can download your Samsung Galaxy J2 SM-J250G firmware at the page, available for some countries. How to Root for Samsung Galaxy J2 SM-J250G is the separated post, this post only for upgrading to Android 7.1.1 • Read More »