A failed firmware update can brick your router. Ensure the power supply is stable, do not interrupt the process, and use a wired Ethernet connection (not Wi-Fi) for the update if possible.
Connect your computer or smartphone to the Tenda Wi-Fi network (default name is usually Tenda_XXXXXX 🌐 Method 1: Online (OTA) Upgrade tenda 4g180 firmware update
Protects your device against new vulnerabilities. ⚠️ Important Warning: A failed firmware update can
This is the most common method, allowing the device to check Tenda's servers directly for new software. Connect to the Device Model: Tenda 4G180 — small home/SMB LTE router
| Issue | Likely Cause | Solution | | :--- | :--- | :--- | | | Wrong hardware version or corrupt download | Double-check the sticker under the router. Re-download from Tenda’s official site. | | Router stuck on blinking power LED (30+ minutes) | Interrupted flash or incompatible firmware | This is a “bricked” state. Perform an emergency recovery (see below). | | 4G connects but no internet after update | APN settings erased | Re-enter the correct APN manually. Save and reboot. | | Wi-Fi signal weak after update | Factory reset changed transmit power | Log in > Wireless Settings > Transmit Power > Set to “High” or “100%”. | | Login page refuses password | Firmware reset to default credentials | Use default admin / admin . If that fails, press the physical Reset button for 10 seconds. |