HD408 Auto Steer Firmware List

Several updates must be completed before calibration for best performance!

Check the newest version numbers below. If the updates have been completed and version numbers match, do not repeat the update!

GNSS
Controller box
Display terminal

Update Version history:

GNSS updates

✅ Required out of box update for use of PPP GNSS (Update this First!)

May 22, 2025

Download Here: UM982_R4.10Build11826.gnss6

Display terminal updates

✅ Current: 3.7.1.15

September 17, 2025

Download Here: Navterminal-v3.7.1.15.apk

(Optimizes and improves usability for a variety of functions, adds SBAS correction option)

Previous:

3.7.1.12

July 10, 2025

(Adds speed display in mph, refined menu options, updated control parameter descriptions, more PPP GNSS options)

3.6.3.13

Controller box updates

✅ Current: 4.2.2.17

September 17, 2025
Download Here: navctrl_4.2.2.17.ver3

Previous:

4.2.2.11

July 10, 2025

4.1.3.0

IMU updates

✅ Current: 1.b

Gyro updates

✅ Current: 0.6

Click Here for an Auto Steering System (Full Kit)

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HD408 Auto Steer Firmware List - Update Hub

New updates for the HD408 System will be posted on this page when released.