If you ever have an issue with one of your Garmin devices, one of the first things the Double U team is going to ask is "Is your device updated?" If you're not sure, it's always good practice to check your device for an update via Garmin Express or Garmin Webupdater. For devices such as the Alpha 200/200i, Alpha 10, and the TT15X/T5X collars, we recommend using Garmin Express. As a quick reference, here is a list of Garmin units and serial number suffix with their current software versions:

Current Garmin Products & Software (as of 5/12/2023):

Unit (Serial Number Suffix)Software Version
Alpha 300i
Alpha 300 (7RC)
Alpha 200i (6EA)6.0
Alpha 200 (75Z)6.0
Alpha 10 (6EG)2.95
Alpha 100 (2PV/3YU)8.0
Astro 430 (3TE)3.5
TT15X (7D7)2.4
TT15 (3S4)4.7
TT15 Mini (4D3)3.9
T5X (7DE)2.4
T5 (3S6)4.7
T5 Mini (4D5)3.9
DriveTrack 71 (5CS)6.4

Discontinued Garmin Products:

Unit (Serial Number Suffix)Software Version
Astro 320 (2DP4.6
Astro 220 (10F)3.7
TT10 (2PU)3.0
DC50 (30K)2.7
DC40 (215)4.1
DC30 (1DW)4.1
DriveTrack 70 (4RZ)6.0

Never updated your devices before? Check out our how to videos below!