Firmware update: Samsung Galaxy Grand Prime SM-G530R4 Android 5.1.1 Lollipop. The firmware available for downloading http://www.sammobile.com/firmwares/database/SM-G530R4/. You can download your Samsung Galaxy Grand Prime SM-G530R4 firmware at the page, available for some countries. How to Root for Samsung Galaxy Grand Prime SM-G530R4 is the separated post, this post only for upgrading to Android 6.0.1 Marshmallow.