Garmin GTN 6 series Maintenance Manual - page 25

190-01007-A1

System Maintenance Manual GTN 6XX/7XX Part 23 AML STC

Rev. 6

Page 3-5

3.3.2

GMA 35 Software Loading

NOTE

The GMA 35 software will be present on the SD card when creating a GTN Software 

Loader Card. A separate card is not required to perform GMA 35 software updates.

1. Remove power from the GTN 7XX by opening the circuit breaker 

2. Insert the GTN Software Loader Card into the GTN 7XX SD card slot (See Section 3.3.1 for 

instructions on how to create a GTN Software Loader Card). 

3. Hold down the HOME key until Garmin is fully lit on the display after power is applied by 

closing the circuit breaker for the GTN 7XX.

4. Ensure the GMA 35 circuit breaker is also closed. 

5. The Configuration Mode page should now be displayed. Touch the Updates key to display the 

software that is available. 

6. To select GMA 35 software updates, touch the GTN Software Updates key on the top left corner 

of the display and select GMA 35 Software Updates. 

7. To update the GMA 35 with all software available, touch Select All. 

8. To begin the software update, touch the Update key on the bottom of the display. 

9. The GTN will display the prompt, ‘Start GMA 35 Software Updates?’ 

10. Touch OK to allow the GTN to update the GMA 35. 

11. When the updates are finished, the GTN will display ‘Update Complete!’. 

12. When finished, turn the GTN and GMA 35 off (open the circuit breaker) and remove the Software 

Loader Card. Reinsert the database card in the SD card slot. 

13. Restore power on the GTN and GMA 35 by closing the circuit breakers and ensure the software 

was updated correctly by going to the System Information page and selecting the GMA 35. Refer 

to Section 3.4.2 for more information on the System Information page.