Select Online Update and wait for the search to complete.

Connect your computer to the router via an for the most stable connection.

Open your browser and enter the admin IP (often found on the device label).

If a newer version is found, follow the on-screen prompts to download and install. Method 2: Offline/Manual Update

Modern firmware versions enable EasyMesh support, allowing the F670Y to act as a mesh network controller.

The V9.0 interface provides a more unified and user-friendly configuration experience. How to Check Your Current Firmware

This is the simplest way to get the latest official "hot" patches directly from ZTE servers. Go to the router's admin page.

If your ISP locks online updates, you may need a manual file. How to Check Modem Firmware - CenturyLink

Updates often optimize the 2.4 GHz and 5 GHz bands to reduce interference.