How to Successfully Upgrade Grandstream Router GWN7062 Firmware Version 1.0.2.3

Description

This article provides a step-by-step guide on upgrading Grandstream routers GWN70XX series’ firmware to versions 1.0.5.44 and 1.0.9.51, including detailed behavior during each upgrade attempt. It also outlines an alternative upgrade method for routers running version 1.0.2.3, which do not support DHCP Option-based upgrades. Follow the provided instructions to ensure a successful firmware update using a local web server and proper DNS configuration.

Issue Summary

A GWN7062 router running firmware version 1.0.2.3 may encounter issues during the upgrade process. The device does not provide options to enter a firmware server path or to manually upload a firmware file, as shown in the attached screenshots. While it can be added to GDMS and shows as online, it does not display local device information, making troubleshooting more challenging.

Upgrade Process Overview

When upgrading the device to firmware version 1.0.5.44:

First attempt: Upgrade will fail with an error prompt.
Second attempt: Upgrade will again fail and trigger internal partition formatting.
Third attempt: Upgrade will complete successfully.

When upgrading to firmware version 1.0.9.51:

First attempt: Upgrade will fail with an error prompt.
Second attempt: Upgrade will again fail, and perform internal partition formatting.
Third attempt: Upgrade will complete successfully.

⚠️ Note: Devices running firmware version 1.0.2.3 do not support DHCP Option-based upgrades. Please follow the steps below for a successful upgrade.

Upgrade Instructions

Network Topology: Ensure your devices are properly connected within the network.
Configure Local DNS Records in the second router: Point the device to your local Web Server.
DNS Settings: Confirm that the DNS server is set to your network gateway.
Firmware File: Place the gwn7062fw.bin file in the root directory of your web server.
Detect Upgrade Process: The device will require three upgrade attempts as outlined above.
Restore Factory Settings after completing the firmware upgrade.
Final Step: Access the web interface and confirm that the firmware version has been successfully updated to 1.0.9.51 (three upgrade attempts required).