Installing Software Updates to T5 mini and TT15 mini Collars

Software for your Garmin T5 mini or TT™ 15 mini collar should be kept up to date to take advantage of improvements and bug fixes. Updates are free and easy to install. You can update your software with the Garmin Express™ program anytime.

If you are updating a full-size T5 or TT 15 collar this process will not work. Instead follow the link below.

Updating Your Garmin Collar with Garmin Express™ Software

NOTE: If you are looking for help with troubleshooting Garmin Express software issues, visit the Garmin Express Support Page

1. Garmin Express must be installed on the computer first. If Garmin Express software is already installed, skip this step

    

2. Connect the collar to the computer with the appropriate USB cable, avoiding the use of any splitters. 

   NOTE: Some newer Mac computers may have only USB-C ports, which would require an adapter. Apple has a helpful support article that explains different USB types, how to identify them, and what adapters can be used: About USB on Mac Computers.

3. 

4. The Garmin Express program will be launched during the installation process. If Garmin Express software is already installed, launch Garmin Express .

   • Windows: Either double-click the Garmin Express icon in the system tray (next to the time), double-click the shortcut on the desktop, or search for Garmin Express program in the Start menu.

   • Mac: Garmin Express can be found in the Applications folder in Finder.

5. Select the desired Garmin product, or click Add a Device and follow the on-screen prompts if your device is not listed.

   

6. Garmin Express software will display the available updates. Click Install or Install All to install all of the updates.

   

7. Review the Terms and Conditions and click Accept to proceed.

   

8. Review the important notes before continuing to ensure the software update installs smoothly. Click Continue.

   

9. Once the update starts, Garmin Express software will display the current progress.

   TIP: Hover your mouse cursor over the progress bar for detailed progress information.

   

10. You will see an Updates complete! message when the update is finished.

    

11. Once complete, disconnect the collar from the computer and power it on to make sure the software updates install successfully.