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GARMIN Nüvi 550 Firmware Upgrades

Firmware: V4.30 - V4.20 - V3.90 - V3.70 - V3.50 - V3.40 - V3.30 - V3.20 - V3.10 - V3.00 - V2.30

The following lists of changes are based on information provided by GARMIN. Changes or improvements which we consider important or especially useful are shown highlighted.

To view the current firmware version, complete the following steps:

  1. Turn on the GPS.
  2. Switch to the tools page by touching the tool symbol on the lower right side of the main menu.
  3. Touch "Settings".
  4. Touch "System".
  5. Touch "About"
  6. The system will display the firmware version on the second line ("Software Version"), the unit ID on the third line, followed by various additional information.
  7. Touch "Back" to return to the previous page.

Each upgrade replaces the complete firmware in the GPS, which means you need to install only the version you wish to apply. There is no need to install any previous versions.


Changes made from version 4.20 to 4.30:

  1. Fixed an error that caused the device to generate inaccurate contour lines on NT Topo Maps.
  2. Fixed several routing errors.

Firmware Upgrade V4.30 (Please use Web-Updater to install the latest firmware)

To table of contents


Changes made from version 3.90 to 4.20:

  1. Corrected an issue that could cause units with certain hardware configurations to repeatedly restart.

Firmware Upgrade V4.20 (Please use Web-Updater to install the latest firmware)

To table of contents


Changes made from version 3.70 to 3.90:

  1. Improved accuracy of touchscreen calibration.
  2. Improved drawing of GB Discover marine maps.
  3. Corrected issue that could cause unit to remain stuck on copyright screen.

Firmware Upgrade V3.90 (Please use Web-Updater to install the latest firmware)

To table of contents


Changes made from version 3.50 to 3.70:

  1. Fixes for displaying Arabic text.

Firmware Upgrade V3.70 (Please use Web-Updater to install the latest firmware)

To table of contents


Changes made from version 3.40 to 3.50:

  1. Improve the way street suffixes are abbreviated.
  2. Fixed issue with map freezing when approaching a Cyclops Camera.
  3. Fixed issue with Arrival message being spoken twice.
  4. Fixed issue with MSN Local Event Dates being cut off on button.
  5. Improve JPG picture viewing.
  6. Improved Geocache compatibility.

Firmware Upgrade V3.50 (Please use Web-Updater to install the latest firmware)

To table of contents


Changes made from version 3.30 to 3.40:

  1. Added Text To Speech support. After updating your nuvi 5xx, disconnect the unit from the computer and let the update install. Then you must connect it again and return to WebUpdater to install voices to enable Text to Speech.
  2. Improved G2 map compatibility by adding topmark display and the option to switch between IALA and NOAA icons, if supported by map.
  3. Improved highway avoidance behavior.
  4. Corrected issue when saving coordinates as a Favorite.
  5. Corrected issue where Optimally Reorder Points could cause final destination to be lost in some custom routes.
  6. Fixed some issues with handling certain Geocache files.
  7. Allow handling of maps larger than 2 gigabytes.

Firmware Upgrade V3.40 (Please use Web-Updater to install the latest firmware)

To table of contents


Changes made from version 3.20 to 3.30:

  1. Improved Bluetooth performance on supported units.
  2. Improved performance with certain USB cables.
  3. Improved rasterized map performance.
  4. Corrected marine map display.
  5. Corrected custom routing issue.

Firmware Upgrade V3.30 (Please use Web-Updater to install the latest firmware)

To table of contents


Changes made from version 3.10 to 3.20:

  1. Added Scooter mode.
  2. Added support for raster maps.
  3. Added night-mode elevation colors.
  4. Corrected issue with position datum being set incorrectly. Datum will be reset to default (WGS84).

Firmware Upgrade V3.20 (Please use Web-Updater to install the latest firmware)

To table of contents


Changes made from version 3.00 to 3.10:

  1. Corrected an issue that caused incorrect translations to be used.

Firmware Upgrade V3.10 (Please use Web-Updater to install the latest firmware)

To table of contents


Changes made from version 2.30 to 3.00:

  1. Once upgraded to this version, software downgrade is not possible.
  2. Allow user selectable datums.
  3. Corrected shutdown issue associated with changing traffic provider.
  4. Allow American English voice to be downloaded via WebUpdater.
  5. Corrected shutdown associated with reading geocache logs.
  6. Improved demo mode initial setup.

Firmware Upgrade V3.00 (Please use Web-Updater to install the latest firmware)

To table of contents


Changes made from version 2.20 to 2.30:

  1. Added support for MSN Direct using GDB-55.

Firmware Upgrade V2.30 (Please use Web-Updater to install the latest firmware)

To table of contents


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