ETH dongle online upgrade

Connect the device to install firmware or open the serial console.

This browser cannot flash over serial. Use Chrome or Edge. Open this page over HTTPS to flash.

Connect the device to this computer with a USB cable to upgrade the ESP32 host firmware. Use Chrome or Edge. Ethernet-only is not enough.

Supported models:

TI: ETH-52P, ETH-52P7
Silabs: ETH-MG21, ETH-MG24, ETH-MG21 POE, ETH-MG24 POE

Do not flash other models on this page. If the serial port does not appear, install the USB driver first, then reconnect.

Before flashing, close anything using the serial port: ZHA / Zigbee2MQTT in Home Assistant, serial monitors, and other browser tabs already on this page. The tool tries to detect the model automatically; if it cannot, select the matching model yourself and then flash.