Connect your computer to the router using an . Do not use Wi-Fi for updates, as a signal drop can corrupt the installation. Open a web browser (Chrome, Firefox, or Edge). Type 192.168.1.1 into the address bar and press Enter. Log in using your credentials. Default Username: admin

Check the sticker on the bottom of your router to confirm the model is specifically .

Follow this guide to ensure your device is running the latest software safely. Why Update Your Router Firmware?

If the router rejects the file, ensure you didn't download firmware for the HG531 "v2" or "s" models by mistake.

After the router restarts, log back into the admin panel (192.168.1.1). Check the or Device Information page. Look for the Software Version or Firmware Version field.