Updates & Downloads

Atemos K5/KT15 software version 3.20

as of September 12, 2025

Use Garmin Express to install this file.

(710 KB)

View system requirements

Notes:

Attention macOS users: This product IS NOT compatible with your OS. Please use the Windows version of WebUpdater to perform updates.
WARNING: If this software is uploaded to a device other than that for which it is designed, you will not be able to operate that device.
If attempts to upload software fail, you may need to return the device to Garmin® for service.

Change History

Changes made from version 3.10 to 3.20:

Bug fixes and improvements

Changes made from version 2.90 to 3.10:

Bug fixes and improvements

Changes made from version 2.70 to 2.90:

Add improvements to pairing

Changes made from version 2.50 to 2.70:

Fix Rescue Mode not exiting when rate changes
Fix staying at 2min update rate even after being fully charged

Changes made from version 2.40 to 2.50:

Add support for new battery replacements
Fix no GPS fix issues

Changes made from version 2.10 to 2.40:

Improved randomization of default tracking settings when user clears non-volatile memory.
Added support for a new battery pack.

System requirements

IBM-compatible PC running Windows 7 SP1 or later operating system and an available USB port.