(via web interface):
[Router Dashboard] -> [Administration] -> [Firmware Upgrade] -> [Select v50749en file] -> [Flash]
Scroll down until you locate the or System Update section. Choose the Local Upgrade option. Click Browse or Choose File . v50749en tenda upgrade upd
Navigate to your computer's storage, select the extracted v50749en file, and click . Click OK or Upgrade on the confirmation pop-up window.
How do I update my 4G router locally - Tenda Global(English) Navigate to your computer's storage, select the extracted
| Problem | Possible Cause | Solution | | :--- | :--- | :--- | | | Incompatible firmware file (e.g., wrong hardware version) | Double-check that the firmware file is specifically for your exact device model and hardware version. Download the correct file from the official Tenda website and try again. | | "Firmware file is too large" Error | The file size exceeds what the device expects | This strongly indicates you have selected the wrong firmware for your specific device model. Re-download the correct version. | | Router Becomes Unresponsive | The router was powered off or the connection was interrupted during the upgrade | Immediately stop and do not turn the router off. This is a serious condition. Try a 30-30-30 reset : With the router powered on, hold the reset button for 30 seconds, keep holding it while unplugging the router for another 30 seconds, then plug it back in while still holding the button for a final 30 seconds. If this fails, contact Tenda support or consider using TFTP recovery. | | Upgrade Process Never Completes | Browser cache issue or a temporary hang during the upgrade | Close the browser tab or window (do not close the router). Open a new browser window in incognito/private mode and log back into the router's web UI to see if the upgrade completed. If not, try performing the upgrade again. | | Settings Are Lost / Router is Unstable | Old configuration settings are conflicting with the new firmware | This is expected. The solution is to perform a factory reset of the router as described in Step 5 of the guide. |
If you run into issues during the installation, please share your and your current firmware version number . I can provide troubleshooting steps or point you to the precise download path. Share public link Download the correct file from the official Tenda
This process uses the "local upgrade" method, which is the most common and reliable way to update Tenda routers.
Better Networking with Tenda WiFi Technology - Signal Boosters
The following guide details how to safely find, download, and apply the v50749en firmware update to your Tenda router. Step 1: Verify Your Router Model and Hardware Version