Updates & Downloads
GPSMAP585 software version 4.00
as of March 21, 2025
View installation instructions and system requirements
Change History
Changes made from version 3.00 to 4.00:
- Add board version control
- Update reading board version approach
- Add new Tianma display settings
- Refactor pixel pitch compensation
Changes made from version 2.60 to 3.00:
- Refine UI layouts with larger font size
- Refine AIS true-scaled outline
- Add GPS antenna short alarm
- Add Barzilian to WW SKU
Changes made from version 2.50 to 2.60:
- Increase maps per tile for G3 cartography compatibility.
- Add support for flashing lights control on chart.
- Adjust to always display depth shading & shallow shading controls on all charts menu and quickdraw setting menu.
- Bring in minor fixes for AIS.
- Update Japanese translations.
Changes made from version 2.40 to 2.50:
- Add new compass overlay template.
- Add support to show restricted area on map.
- Improve precision of map cursor scanned position.
- Make fishing chart the default home page item.
- Enlarge the navaid symbol size.
- Allow compass page to config data fields.
- Fix heading line length don't work when system unit is set to meter.
- Enable QZSS support with new GPS firmware V4.10.
- Speed up sonar scrolling speed of UltraScroll.
- Fix several encoding issues to display utf-8 characters properly.
- Fix some translation issues.
- Fix some UI appearance issues.
Changes made from version 2.20 to 2.40:
- Increase the cursor resolution and moving speed in sonar pages.
- Bring in sonar target expansion feature to enlarge sonar image by + / - keys while paused.
- Show distance information on sonar vertical line.
- Add warning message before user access the sonar installation menu.
- Make sonar color bar configurable to left / right of the screen or off.
- Add GT 10-IF and Koden TD-500T transudcer support.
- Change default Mark symbol to Red Cross, default Waypoint symbol to Green Flag.
- Improve waypoint creation accuracy by cursor on chart.
- Modify menu of AIS Radar to easier access the AIS filter / sort menu.
- Allow to input all Sixbit ASCII characters while filter AIS vessels by name.
- Allow using fishing chart for all maps.
- Bring in fishing hotspot icons for supported maps.
- Fix unicode string display issue on map service page.
- Default enable the depth shading feature on chart menu.
- Make the title of combo page can be translated.
- Other UI bug fixes.
Changes made from version 2.10 to 2.20:
- Display vessel SOG and COG information on map info box while panning.
- Change the sea color in night mode to black.
- Prohibit to press back key from exiting major function pages.
- Add shortcuts to allow user to create boundary lines directly from map menu.
- Record the last used boundary color for next creation.
- Add turn on/off track toggle to map menu.
- Add color gain and echo stretch to clutter menu.
- Allow to input codepage-specific characters in data entry page.
- Add capibility to change heading line source options.
- Add ability to input Lat./Lon. for navigation while press GoTo key.
- Fix GPS speed data field not updated in sonar page.
- Refine translation quality.
Changes made from version 2.00 to 2.10:
- Limit GPS debug data transfer through serial port.
- Enlarge user data auto naming digits from 4 to 5.
- Fix protential system hang issue while adjusting zoom range.
Installation Instructions
- A maximum size 32GB SD card, formatted to FAT32, with 2GB of free space is needed for this update.
- Please back up your user data before applying the update.
- Click on 'Download' and choose to save the file to your computer.
- Choose a location where you can easily find the file, such as the 'My Documents' folder or 'C:\'.
- Once the download is complete, go to the location where you saved the file.
- Double-click on the downloaded file. This will automatically extract the files to C:\Garmin and run a program to transfer the software update to an SD card.
- Power on the device and make sure all attached network devices are powered on as well.
- Insert the card into the card slot of your primary device. Select 'Update Software' in the window that automatically displays. If you do not have a primary device with a card slot, please see your dealer.
- After the update completes, all Garmin Marine Network devices and NMEA 2000 sensors will have the latest software. This ensures all of the devices will be able to communicate with each other.
Note: If you have additional chartplotters connected to NMEA 2000 and not the Garmin Marine Network, you will have to independently update each chartplotter. After the update of the Garmin Marine Network completes, insert the update card into each NMEA 2000 chartplotter.
System requirements
- IBM-compatible PC running Windows 2000 or later operating system and an available SD card reader.