Firmware Link — Zte F670l V90

: Official firmware is generally not available for public download. ZTE recommends visiting the ZTE Support Center or contacting your ISP for official update packages. Community Links

Select the V90 file and click Upgrade . The process takes 3–5 minutes. Do not power off the device during this time. Troubleshooting a Failed Update If your router fails to boot after an update attempt: zte f670l v90 firmware link