Using the Web Updater to update the Bluetooth Module

Bluetooth Module Firmware Recovery (Version shows 0.0.0)

If your Bluetooth Module is not functioning and the Bluetooth version displays 0.0.0, the module firmware may need to be reinstalled.

Before You Begin

• You will need to remove the backplate to access the internal USB-C port used for updating the Bluetooth Module.
• A USB 2.0 connection is required for the update process (see note below).

Windows UsersYou may need to install the USB-to-Serial driver before proceeding.
Download and install the CP210x Universal Windows Driver from Silicon Labs:
https://www.silabs.com/software-and-tools/usb-to-uart-bridge-vcp-drivers?tab=downloads

Firmware Update Steps

1. Open the Bluetooth firmware web updater:

👉 https://esp32-uploader-mfx.web.app/⚠️ Important

The web updater does not work reliably with native USB 3.0 ports.

If your computer only has USB 3.0 ports, use a USB 2.0 dongle or hub connected to the USB 3.0 port.

2. Download the latest Bluetooth firmware from the official repository:

👉 https://github.com/Morningstar-Engineering/bluetooth-firmwares/releases/latest

3. Connect the internal USB-C port to your computer and click Connect to Device on the web updater.

4. Once connected successfully:

• • Select the firmware file you downloaded
  • Click Upload to flash the firmware to the Bluetooth Module

5. Wait for the process to complete, then disconnect and reassemble the unit.

Updated on: 03/02/2026