How to Apply a Wired Firmware Update to Your Collar

A wired firmware update is used when your Halo Collar cannot update automatically over Wi-Fi or cellular.

What You’ll Need

• Your Halo Collar
• USB-C charging cable (included or compatible)
• A computer (PC or Mac)
  • May require an adapter depending on your device

Important Note

• After completing a wired update:
  • Wait 5 minutes before adding the collar to your account
  • This allows the SIM card to activate

Step 1: Identify Your Collar Model

• Open the Halo App
• Tap Settings > My Collars
• Select your collar
• Locate the model type between the collar name and serial number:
  • Halo 1
  • Halo 2
  • Halo 2+
  • Halo 3
  • Halo 4
  • Halo 5

Step 2: Download the Correct Firmware File

Download the firmware file that matches your specific collar:

• Halo 1 or Halo 2
  • Download the firmware update file for Halo 1 / Halo 2
• Halo 2+
  • Download the firmware update file for Halo 2+
• Halo 3
  • Download the firmware update file for Halo 3
• Halo 4
  • Download the firmware update file for Halo 4
• Halo 5
  • Download the firmware update file for Halo 5
• After downloading:
  • Locate the file in your Downloads folder
  • File name will look like:
    • “3.7.41_v1”
    • “3.7.41_v2”
    • “3.7.41_v3”
    • “3.7.41_v4”

    • “3.7.41_v5” 

      

Step 3: Connect Collar to Computer

1. Connect the collar using the USB-C cable
2. Hold the power button for 5–7 seconds
   • Collar will vibrate 3 times
   • LED flashes red
3. The collar is now in low-power mode

• Note:
  • Your computer should detect a new device
  • If not, perform a hard reset (hold for 60 seconds) and try again

Step 4: Access the Collar Drive

• Open:
  • File Explorer (Windows)
  • Finder (Mac)
• Locate the collar as a drive:
  • PC: Typically D: or E:

  • Mac: Typically “No Name” 

    

• Open the drive
• You should see folders such as:
  • log
  • config

  • (optional) fw 

    

Important Notes (If Drive Doesn’t Appear)

• Halo 3:

  • Ensure charger orientation matches the reference image 

    

• Halo 4 & Halo 5:
  • Ensure the magnetic charger is oriented correctly

  • You should see the word “Halo” on the adapter when facing the front 

    

Step 5: Transfer the Firmware File

1. Locate the downloaded .tar file
2. Copy the file
3. Navigate back to the collar’s drive
4. Paste the file into the main root directory
   • Do not open any folders

• The drive should now contain:
  • Firmware file (.tar)
  • log folder
  • config folder

Step 6: Start the Update

1. Press the power button once (1 second)
2. The update will begin within ~5 seconds:
   • LED will blink Red and Green
3. Wait 3–4 minutes for completion

Step 7: Complete the Update

• Once finished:
  • LED will show:
    • Solid Green (fully charged), or
    • Blinking Green (still charging)
• Final step:
  1. Unplug the collar
  2. Press the power button once to turn it back on

Important Requirement

• Ensure the collar has an active LTE connection after updating
  • This allows the system to:
    • Verify the update
    • Apply changes correctly

After the Update

• Take the collar outside for ~30 minutes
• Ensure:
  • Clear view of the sky
  • Movement (walk with the collar if possible)
• This allows:
  • GPS recalibration
  • Improved accuracy

Additional Notes

• Wired updates should only be used if wireless updates fail
• For automatic updates:
  • Plug the collar in overnight
  • Connect to Wi-Fi
• This enables:
  • Automatic downloads
  • Ongoing firmware updates

If you need further assistance, our support team is happy to help!