: Occasionally unlocks better compatibility with newer devices. How to Upgrade the Sagemcom F@st 4315 Most ISP-branded routers like the are controlled by the provider . Here is how you can get that "extra quality" update: Common nbn modem and wi-fi settings - Belong
: If your ISP has provided a specific file, use the "Choose File" option to upload it and click "Update". sagemcom fast 4315 firmware extra quality