GTN 6XX/7XX Part 27 AML STC Maintenance Manual 190-01007-B1Page 3-6 Rev. 13.3.1 GTN Software UpdatesNOTEThe following steps will need to be repeated for each GTN unit that requires a softwareupdate.To update the GTN software, perform the following steps:1. Remove power from the GTN.2. Remove the database card and insert the correct GTNSoftware Loader Card into the SD card slot. SeeSection 3.2.1 for creating a GTN Software LoaderCard.3. Power up the GTN in Configuration mode whilepressing and holding the HOME key and reapplyingpower to the GTN. Hold the HOME key until theGarmin logo is fully lit on the display.4. The GTN is now in configuration mode as shown inFigure 3-8. Touch Updates to display the softwareupdates that are available.5. Verify that the software version being loaded to theGTN matches the software version listed on the GTNPart 27 STC Equipment List, 005-00533-H1. TheUpdates page displays the version that is installed onthe unit and the version installed on the loader card.6. Verify that the available GTN software updates arebeing displayed by ensuring that GTN SoftwareUpdates key is highlighted in the upper left corner (upper right corner for 6XX) of the display.7. To update the GTN with all software available, touch Select All.8. To begin the software update, touch Updates on the bottom of the display.9. The GTN will display the prompt, ‘Start GTN Software Updates?’10. Touch OK to allow the GTN to go through the update process.11. When the updates are finished, the GTN will display ‘Update Complete!’. When finished, removepower from the GTN and remove the Software Loader Card. Reinsert the database card into theSD card slot.Figure 3-9. GTN 7XX UpdatesPage
