Connect your computer to the router using an Ethernet cable. Do not update over Wi-Fi, as signal drops can corrupt the installation.

Sometimes the browser interface freezes. Clear your browser cache or try using an Incognito/Private window to upload the file again. The Router is Unresponsive After Updating (Boot Loop)

: Enter the admin username and password, which are usually found on a sticker at the bottom of the device. 2. Update Automatically (Online Update)

Once the router is back online, log back in and verify that the software version number has changed. I recommend performing a factory reset if you notice any bugs, as old settings can sometimes conflict with new software.

Ensure your router and computer are plugged into a stable power source. A power outage during a firmware flash can permanently damage the hardware.

Write down the full version number. You will compare it with the latest version on your carrier’s support site.

: Click Choose File , select your downloaded firmware, and press Upload to begin the installation. Important Tips How to Update your ZTE MF297D, How To - HardReset.info

The update may have changed the default IP scheme. Open your computer's command prompt, type ipconfig , and check the "Default Gateway" address to find the new login IP.

Most MF297D models use a Windows-based “Firmware Upgrade Tool” – not a web upload.