Firmware update: Samsung Galaxy S5 mini SM-G800M to Android 6.0.1 Marshmallow. The firmware available for downloading https://www.sammobile.com/firmwares/SM-G800M/. You can download your Samsung Galaxy S5 mini SM-G800M firmware at the page, available for some countries. How to Root for Samsung Galaxy S5 mini SM-G800M is the separated post, this post only for upgrading to Android 6.0.1 Marshmallow.