Updates & Downloads

T5/ TT15 Mini OnSemi software version 5.30

as of September 26, 2023

Use Garmin Express to install this file.

(1.11 MB)

View system requirements

Notes:

Add improvements to pairing
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 5.10 to 5.30:

Add improvements to pairing

Changes made from version 5.10 to 5.30:

Changes made from version 4.90 to 5.10:

Fix factory reset corrupting ID

Changes made from version 3.80 to 4.90:

Fix Rescue Mode not exiting when rate changes

System requirements

IBM-compatible PC running Windows 2000 or later operating system and an available USB port.