Hg8245w56t Firmware Link -

(a GPON ONT), you generally must go through official carrier or manufacturer channels, as this device is typically ISP-managed. Official Firmware Sources

If you are reading this, you have likely spent hours scouring obscure forums, clicking broken links, and navigating the frustrating bureaucracy of Internet Service Providers (ISPs). You are looking for the firmware file (usually a .bin file) for the optical network terminal (ONT). hg8245w56t firmware link

Go to System Tools > Software Upgrade .