Firmware update: Samsung Galaxy A5 SM-A500W Android 6.0.1 Marshmallow. The firmware available for downloading http://www.sammobile.com/firmwares/database/SM-A500W/. You can download your Samsung Galaxy A5 SM-A500W firmware at the page, available for some countries. How to Root for Samsung Galaxy A5 SM-A500W is the separated post, this post only for upgrading to Android 6.0.1 Marshmallow.