Tenda D301 Firmware Update Extra Quality Link

Firmware is hardware-specific. Ensure you download the version matching your specific model (e.g., D301 v1.0, v2.0, or v4.0).

Never update firmware over Wi-Fi. A sudden signal drop can "brick" your router. Use an Ethernet cable to connect your PC directly to the router's LAN port. Tenda D301 Firmware Update

Login with the default credentials: for both username and password. Firmware is hardware-specific