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Updates & Downloads

GPS175/GNC355/GNX375 - Service Bulletin 23110, Rev A Document software version 3.22

as of October 31, 2023

Download (440 KB)

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 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.