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Firmware: V3.40 - V3.30 - V3.20 - V3.00 - V2.80 - V2.70 - V2.60 - V2.50 - V2.40

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. On the menu page scroll down to "Setup".
  3. Press the "MENU" key.
  4. Scroll down to "System Information" at the bottom of the list and press the "ENTER" key.
  5. The software version will be shown on the second line.
  6. Press the "ENTER" or the "QUIT" key to close the "System Information".

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 3.30 to 3.40:

  1. Fixed issue where Currents chart would show incorrect data.

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

To table of contents To table of contents

Changes made from version 3.20 to 3.30:

  1. Fixed issue where data fields would not update correctly on the compass page.

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

To table of contents To table of contents

Changes made from version 3.00 to 3.20:

  1. Fixed issue where waypoints were being drawn incorrectly on the map.
  2. Fixed issue where selecing an intersection on the map would not transition to the correct view.
  3. Fixed issue where course and bearing line could not be configured separately in Map Setup.

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

To table of contents To table of contents

Changes made from version 2.80 to 3.00:

  1. Added automatic transition to the map page when the device gets a GPS fix if no buttons have been pressed.
  2. Fixed issue where selecting direct routes with more than 50 waypoints did not work.
  3. Fixed issues with marine current station information.
  4. Fixed waypoint category filtering on the map.
  5. Fixed issue where new user waypoints would not be assigned the default category.

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

To table of contents To table of contents

Changes made from version 2.70 to 2.80:

  1. Fixed issue with saved tracks with more than 16,000 points.
  2. Fixed possible shutdown when using highway page.
  3. Fixed pointer field not displaying on the map overlay.
  4. Fixed possible shutdown when using voice navigation in the automotive mount.
  5. Fixed issue where Avoidance Setup was available when the Routing Activity is set to Prompted. Prompted routing will use the avoidance settings for the activity selected after being prompted.

Firmware Upgrade V2.80 (Please use Web-Updater to install the latest firmware)

To table of contents To table of contents

Changes made from version 2.60 to 2.70:

  1. Fixed issue where POIs would not show up in Find->Extras when loading using Garmin POI loader.
  2. Fixed issue where deleting archived tracks would not work.
  3. Fixed smart notification messages being cut off in the notification list.
  4. Fixed issues with route creation from the map.
  5. Improved route calculation time on the map.

Firmware Upgrade V2.70 (Please use Web-Updater to install the latest firmware)

To table of contents To table of contents

Changes made from version 2.50 to 2.60:

  1. Improved marine map support.
  2. Improved route calculation times.
  3. Fixed issue where tracks were not shown on the map when activated via the NAV button.
  4. Fixed possible freeze when searching for POI 'Food and Drink'.
  5. Fixed issue where activating a route while in Marine mode would automatically switch to Automotive mode.
  6. Fixed intermittent issue where selecting 'Hide/Show Heading Line' on the map would not work.
  7. Fixed possible shutdown on the Active Route page.
  8. Fixed possible issue where routes would remain on the map after being deleted.

Firmware Upgrade V2.60 (Please use Web-Updater to install the latest firmware)

To table of contents To table of contents

Changes made from version 2.40 to 2.50:

  1. Improved marine map support.
  2. Fixed issue where the active route would not recalculate correctly if route avoidance settings were changed.
  3. Fixed possible issue where voice prompts could not be heard when using headphones.

Firmware Upgrade V2.50 (Please use Web-Updater to install the latest firmware)

To table of contents To table of contents

Changes made from version 2.30 to 2.40:

  1. Fixed possible freeze when ejecting the unit from mass storage.
  2. Fixed possible shutdown on the GPS page with low battery.
  3. Fixed routing for routes that include shaping points.

Firmware Upgrade V2.40 (Please use Web-Updater to install the latest firmware)

To table of contents To table of contents

GARMIN GPSMAP 276Cx Very rugged, portable, multi-functional GPS devices with brilliant 5 inch color display, GLONASS support, electronic 3D compass, barometrical altimeter, integrated base map, pre-installed recreational map of Europe, slot for uSD memory card, Blue Tooth, WLAN and USB interface, see detailed description.

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