This master reset should work for the following Garmin GPS Collars:

If the Garmin GPS collar is failing to operate as expected, corrupt data may be the cause. Performing a master reset will return the collar to factory settings and clear data resolving issues caused by corrupt data.

To perform a master reset on TT10, TT15/TT15X, T5/T5X collar:

  • Ensure the device is powered off
  • Connect charging clip to collar
  • Connect USB cable to collar and computer
  • Ensure collar light is active to confirm connection
  • Firmly press the power button 4 times
  • Wait for light to turn green then red
  • Disconnect USB cable and charging clip from collar

After the master reset, the collar will need to be removed from the tracking handheld's dog list, and paired back in again.

  • Removing a Dog from the Dog List
    • Select Dog List
    • Select a dog
    • Select Remove

The collar has now been reset and is ready for use.


This master reset should work for the following Garmin GPS Collars:

If the Garmin GPS collar is failing to operate as expected, corrupt data may be the cause. Performing a master reset will return the collar to factory settings and clear data resolving issues caused by corrupt data.

To perform a master reset on  TT15 Mini or T5 Mini collar:

  • Ensure the device is powered on and flashing a green light
  • Rapidly Press the power button 8 times
  • Wait for light to turn solid red then begin flashing green again
  • Allow the collar a clear view of the sky for 20 minutes

After the master reset, the collar will need to be removed from the tracking handheld's dog list, and paired back in again.

  • Removing a Dog from the Dog List
    • Select Dog List
    • Select a dog
    • Select Remove

The collar has now been reset and is ready for use.


If this does not fix your problem, please contact Double U at 855-384-8687 or at mail@dusupply.com for more troubleshooting options.