The option to manually upload a firmware file is usually hidden or disabled in the web portal.
Log in to your router to create a configuration backup. This allows you to restore your ISP settings (PPPoE/IPoE), Wi-Fi names (SSID), and passwords if the update resets the device. huawei hg659 firmware update
If you received your HG659 from an ISP (such as Vodafone, Spark, TPG, or iiNet), the device runs custom firmware. The option to manually upload a firmware file
Here is a quick reference table of common firmware versions based on the research: Wi-Fi names (SSID)