Prerequisites

• Home Assistant Connect ZWA-2.
• USB data cable to connect the Home Assistant Connect ZWA-2 to your computer system. If you are unsure if your cable is a data cable, we recommend using the USB-A to USB-C cable provided with the Home Assistant Connect ZWA-2.
• Desktop or laptop computer with a USB port and a Chromium-based browser (such as Chromium, Google Chrome, Microsoft Edge, Brave, or Opera).
  • Note: Firefox is not chromium-based.
  • If your browser does not support Web Serial, you will see a warning message.

To update the firmware of the ESP chip in Connect ZWA-2

1. Connect the Home Assistant Connect ZWA-2 to the USB port on your computer.

2. Open the following page on your desktop or laptop in a compatible web browser.

   • Note: The software installation does not work with a tablet or phone.
   • Home Assistant Connect ZWA-2 Toolbox (https://home-assistant.github.io/zwa2-toolbox/)

3. Select Update ESP firmware.

4. Select Connect.

   • From list of available USB devices, select Connect ZWA-2 and select Connect.

5. Select the firmware and select Install.

   • Unless you need a specific version, choose the latest version.

6. Follow the steps on screen.

Related topics

• Home Assistant Connect ZWA-2 Toolbox
• I'm running Z-Wave JS UI on Windows and Connect ZWA-2 fails to start or connect