190-01878-02
GMA 342/345 Installation Manual
Rev. 5
Page 2-13
2.9 Updating Software
Updating software is performed using an SD card. Garmin recommends using a 4GB Sandisk® SD Card.
2.9.1 Checking Software Version
The GMA 342/345 comes pre-loaded with system software. However, if the software is out of date, it is
recommended that current software be loaded from an SD card into the GMA 342/345.
The current version of software can be retrieved in the configuration operating mode. See
for
instructions.
2.9.2 Creating a Software Loader SD Card
The software update mode allows the installer to load unit software using an SD software loader card.
NOTE
The application to create a loader card requires Windows 2000, XP, Vista, Windows 7, or
Windows 10. There is no Mac support at this time.
6. Go to the Dealer Resource Center at
dealers.garmin.com
.
7. Download the GMA 342/345 software to your PC.
8. Ensure that an SD card (Garmin recommends a Sandisk® brand 4GB SD card) is connected to the
PC in the SD card slot.
9. Run the executable file that was downloaded and follow the prompts on the screen to create the
software loader card.
10. After the card has been created, select finish to complete the process.
11. Remove the card from the slot. The loader card is now ready to use.
2.9.3 Loading Software to the GMA 342/345
1. Remove the unit from the rack using a 3/32” Allen tool.
2. The SD card slot is on the right side of the unit next to the DIP switches (see
). Insert
the SD card with pins facing down (toward the bottom of the unit).
3. Install the unit back into the rack using a 3/32” Allen tool.
4. Press and hold the following two keys while turning the unit on:
a) For GMA 342 and 345 (2-COM version): COM1 MIC key and TEL key.
b) For GMA 345 3-COM unit: COM1 MIC key and COM3 MIC key.
5. The GMA 342/345 will begin checking the SD card for updated software.
a) Do not turn the GMA 342/345 off or remove power during the update process.
b) The top row of buttons, from left to right, will indicate the progress of the update process.
c) If a problem is encountered during the update process, all buttons on the top row will flash at
a 1 Hz rate.
