HD408 Firmware Updates
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      3. HD408 Firmware Updates

      Firmware Update Hub - HD408 AutoSteer

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

      Update Version history:

       

      GNSS updates

      ✅ Required out of box update for use of PPP GNSS 

      May 22, 2025 

      Download Here: UM982_R4.10Build11826.gnss6

      Display terminal updates

      ✅ Current: 3.7.1.12

      July 1, 2025  
      Download Here: Navterminal-v3.7.1.12

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

      Previous: 3.6.3.13

      Controller box updates

      ✅ Current: 4.2.2.11

      July 1, 2025  
      Download Here: navctrl_4.2.2.11.ver3

      Previous: 4.1.3.0

      IMU updates

      ✅ Current: 1.b

      Gyro updates

      ✅ Current: 0.6