Technical Service Bulletin No. 204490
NAC-D Software Release v1.0.04.00
Navico Group is pleased to announce the release of a new software version for the NAC-D Electronic Vessel Control Autopilot Computer. Software release V1.0.04.00 offers the following key performance improvements.
Key Improvements
- Fixed an issue where unusual conditions could cause spurious transmissions of PGNs after receiving a Global ISO address claim request. This caused a high bus load with increased fast packet errors and could lead to devices losing visibility on the NMEA 2000® bus.
- Added a minor change where the rudder data missing alert is no longer raised when the autopilot is in standby.
Update Procedure
Using an NSX, NSS4, or NSO4
- Connect the MFD to the internet by selecting a valid WiFi network under
Settings > Connectivity > Wifi. - Select software updates from
Settings > General > Software Updates. - You should see the NAC-D 1.0.04.00 update listed. Tap Download update.
- When downloaded, tap Install now.
- The device will show the update progress. When complete, a message will read “Device update successful.” Select Finish.
Using an NSS/NSO Evo3S
- Download the software from simrad-yachting.com/downloads. Select Autopilots in the product series drop-down and download the NAC-D update by clicking NAC-D Software update.
- Check the name of the downloaded file — it should be
NACD 1_0_04_00.swup. - Save the file to a micro-SD card and insert it into the micro-SD slot on the MFD.
- Select Storage from the menu on the home page, and select the software file on the microSD.
- Select Upgrade and follow the on-screen prompts.
Using the USB port on a compatible display (AP44, AP48)
- Download the software and confirm the file name as described above.
- Save the software to a USB stick and insert it in the USB slot on the display.
- Select the software file:
Menu > Settings > System > Filesand select upgrade. - Follow the upgrade instructions on screen.