Because this device is usually provided by an ISP, the firmware is often to that specific provider. You cannot simply download a "universal" firmware from the Tenda website.
The most recent stable firmware for the HG9 is , released in early 2025. This update focuses on critical stability and security improvements: firmware tenda hg9
With the 12.69 MB ZIP file downloaded and unzipped to reveal the precious .bin file, the owner prepared for the delicate "Ritual of the Upgrade": HG9 AC1200 Dualband Wi-Fi GPON ONT - Tenda Russia Because this device is usually provided by an
Before updating the firmware of your Tenda HG9 router: firmware tenda hg9