Click "Upgrade" and do not power off the device. The router will reboot automatically once finished. ⚡ Important Safety Tips
Before downloading any files, you must verify your current firmware version and hardware revision (e.g., V1.1 or V9.0) to avoid bricking the device. Connect your computer to the router via a LAN cable. Open a browser and go to 192.168.1.1 Log in with your credentials (common defaults include Navigate to Device Information to find the Software Version 2. Locate the Correct Firmware zte f670l latest firmware download