Firmware update: Samsung Galaxy A5 SM-A500K Android 6.0.1 Marshmallow. The firmware available for downloading https://samsung-firmware.org/model/SM-A500K/. You can download your Samsung Galaxy A5 SM-A500K firmware at the page, available for some countries. How to Root for Samsung Galaxy A5 SM-A500K is the separated post, this post only for upgrading to Android 6.0.1 Marshmallow.