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Halo Firmware Upgrade

Incremental Upgrade (OTA)​

On the Halo device information page, click on the version number to check for updates. If an update is available, a prompt will appear; click Update to begin the upgrade.

Note

Do not disconnect power during the upgrade process. Wait until the progress reaches 100%, and the device will restart automatically.

Full Upgrade (USB)​

If a full firmware upgrade is released, you will need to connect the Halo to your computer via USB to perform the upgrade.

Power Off Operation

Before starting, completely power off the printer and disconnect the power supply. Do not plug or unplug cables, organize wiring, or touch terminals while the device is powered on.

Important

A full upgrade will not preserve your existing settings. All settings will be restored to defaults.

Flashing Steps​

  1. Download the USB flashing tool flash_download_tool

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  2. Download the firmware: Halo Firmware Download

  3. Open flash_download_tool_3.9.4.exe

    • Note: After opening the flashing tool, a CMD window will pop up first, followed by the flashing tool interface. Do not close the CMD window.

  4. In the flashing tool, configure the following settings:

    • ChipType: Select ESP32-S3
    • WorkMode: Select Develop
    • LoadMode: Select USB
    • Finally, click OK. Refer to the images below.
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Important

The areas highlighted in green in the image above must match the image exactly. Do not modify them.

  1. Connect the Halo to the computer via a USB Type-C cable
  2. Click button 1 in the blue area in the image above to select the firmware you downloaded
  3. Click button 2 in the blue area in the image above to select the Halo's serial port (if it is not available, hold down the B button on the back of the Halo while connecting it to the computer)
  4. Click button 3 in the blue area in the image above to start flashing. After flashing is complete, restart the Halo to finish the full upgrade.
Note

You must wait until the flashing completion prompt appears before disconnecting the Halo cable; otherwise, the firmware may be corrupted.

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