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Update OMI Firmware

To update the firmware of your OMI device, navigate to the OMI App:
Settings > Device Settings > Update Firmware.

Manually Update the Firmware​

Video Tutorial​

Walkthrough​

Downloading the Firmware​

  1. Visit the OMI GitHub releases.
  2. Download the latest firmware and bootloader .uf2 files.
    Important: Ensure you select the correct files for your device:
    • Developer Kit 2 firmware is not compatible with Developer Kit 1.

Putting OMI into DFU Mode​

  1. Plug the OMI device into your computer using a USB cable.
  2. Locate the DFU Button:
    • For Developer Kit 2, remove the lid to access the button which is labeled "RST"
    • For Developer Kit 1, see the image below for button location:
  3. Prepare a Pin: Use a small pin or similar tool to press the tiny button.
  4. Press the DFU Button Twice: Quickly press the button twice in succession using the pin.
  5. Check for Recognition: After pressing the button, your computer should recognize a new drive.
  6. Verify the Drive Name: Look for a drive named /Volumes/XIAO-SENSE on your computer. This confirms the device is in DFU mode.

Flashing the Firmware​

  1. Locate the .uf2 files downloaded earlier.
  2. Drag and drop the bootloader .uf2 file onto the /Volumes/XIAO-SENSE drive.
    • The device will automatically eject itself after completing the bootloader flashing process.
  3. Put the OMI device back into DFU mode by double-tapping the reset button.
  4. Drag and drop the firmware .uf2 file onto the /Volumes/XIAO-SENSE drive.
    • Note: If your computer reports the transfer was incomplete, it is likely still successful.

Congratulations!​

You have successfully flashed the latest firmware onto your OMI device.
Enjoy the enhanced functionality and features of your updated OMI!