Perform a hard pinhole reset. If unresponsive, the device may require TFTP recovery or replacement. WAN configurations erased.

If you need help finding a specific version, please tell me your and your internet service provider (ISP) so I can locate the exact file for you. Share public link

Before you begin the upgrade process, it's important to understand what you are downloading:

Recent vulnerabilities (such as CVE-2026-2910 and CVE-2026-2909) have been identified in older versions like 300001138, which could allow unauthorized diagnostic ping manipulations.

, use the direct link provided by Tenda's global support portal:

Most Tenda HG9 units have an online upgrade feature:

Keeping your firmware updated is not just about getting new features; it's a crucial security practice for any internet-connected device. Several known security vulnerabilities have been identified in various versions of the Tenda HG9 firmware, including and Stack-based Buffer Overflow attacks. These vulnerabilities could allow an attacker to remotely execute malicious code on your device. The most effective way to mitigate these known security risks is to ensure your device is running the latest available firmware.

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Enhances handshake protocols with the ISP's Optical Line Terminal (OLT) for cleaner data transmission.