While not strictly required, many experienced users remove the SIM card before updating. This prevents the router from attempting to re-establish a 4G connection during the reboot cycle, which can sometimes interrupt the flash process.
Check the bottom of your router for the hardware version. It is crucial to download firmware that matches your specific hardware model. Download the Firmware: official Tenda Support page and search for " ." Download the latest file to your computer Access the Router Admin: tenda 4g630 firmware update
If you follow this guide, your Tenda 4G630 will remain a reliable gateway to the internet for years to come. And if you run into an issue not covered here, visit the official Tenda support forum or contact their technical support directly—but chances are, you will be back online before you know it. While not strictly required, many experienced users remove