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Updates & Downloads

GPS175/GNX375/GNC355 - Software Loader 006-B3353-0D software version 3.22

as of October 31, 2023

Download (33.37 MB)

View installation instructions

Installation Instructions

  1. The application requires Windows 2000, XP, Vista, Windows 7, or Windows 10. Mac computers are not supported.
  2. Download GPS175/GNX375/GNC355 System Software Version 3353.0D (006-B3353-0D).
  3. Make sure an SD card reader is connected to the PC.
  4. Put the GTN Downloadable Software SD Card (010-01000-00) in the card reader.
  5. Run the executable file that was downloaded in Step 2.
  6. Follow the onscreen prompts to create a software loader card.
  7. Select Finish to complete the process.
  8. Eject the card from the card reader. The software loader card is now ready to use.