Updates & Downloads

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D2 Charlie software version 6.10

as of May 18, 2021

Use WebUpdater to install this file.

(8.49 MB)

View system requirements

Notes:

• WARNING: If this software is uploaded to a device other than that for which it is designed, you will not be able to operate that device.
• If attempts to upload software fail, you may need to return the device to Garmin® for service.

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Change History

Changes made from version 6.00 to 6.10:

• Add Beijing time zone

Changes made from version 5.60 to 6.00:

• Fixed an issue with downloading heart rate data post activity.
• Fixed an issue where the device was intermittently failing to record a golf activity.
• Fixed an issue where turn direction labels could be intermittently blank while navigating.
• Fixed an issue where the device was displaying incorrect time for Brazil within the Alternate Time Zones widget.
• Updated training load usage comments.
• Brought in CIQ security updates.
• Fix altimeter calibration in activity.
• Fixed a couple of issues which should improve device stability.
• Fixed an issue with altimeter calibration. This should address speed spikes in activities with 3D Speed enabled. (For example: Ski.)
• Fixed an issue where the device might crash when unplugging from USB.
• Fixed an issue where the watch may freeze during a Ski activity.
• Fixed a couple of issues which should improve device stability.
• Fixed an issue with active calorie calculation.
• Added support for connecting to a shifting sensor (Sram Etap or Di2 bike) that supports up to 4 front and 12 rear gears.
• Fixed an issue where steps were not being counted during a multisport activity.
• Fixed an issue where one wasn’t able to search near a waypoint.
• Fixed a couple of issues that should improve device stability.
• Fixed an intermittent issue where the device may crash after connecting it to the computer.
• Fixed an issue where a Connect IQ watchface would fail to load with software v15.10
• Fixed an issue where the device would crash soon after switching the language to Hebrew.
• Added support for inReach display verification, when using authentication.
• Brought in support for CIQ SDK v3.1. (Requires new Display FW v3.20)
• Improved pairing experience with Garmin Dual ANT+/BLE Sensors.
• Fixed an issue with proximity pairing a dual mode sensor.
• Fixed an issue with treadmill calibration.
• Fixed an issue where Pool Swim activities could contain position data.
• Fixed an issue where the device could register a speed spike during Ski activities.
• Fixed an intermittent issue where average HR, max HR and calorie counts could be inaccurate during a pool swim.
• Fixed an issue where the course list appears to skip a course when scrolling.
• Fixed an intermittent issue where the device would display a distance of 0, when navigating to a point right after a power cycle.
• Made several improvements for Golf.
• Made other miscellaneous code improvements and bug fixes.

Changes made from version 5.50 to 5.60:

• Auto Fly: Start Flight Timer without waiting for GPS fix or speed threshold if unable to determine speed.
• Improved Pairing Experience with Garmin Dual ANT+/BLE Sensors.
• Made several code improvements and bug fixes for golf, especially CT10.
• Fixed an intermittent issue where the device could report an incorrect treadmill calibration.
• Fixed an issue where the hourly alert was off by minutes when manually changing time on device.
• Fixed an issue where stroke data during a rowing activity was not available on Varia vision.
• Fixed an intermittent issue where the device could crash during a Biking activity when using a speed or cadence sensor.
• Fixed an intermittent issue where the device could crash when fetching calendar information from the smartphone.
• Fixed an issue where smart notifications intermittently stopped working for iOS devices.
• Fixed an issue where workouts from a training plan were marked as missed despite being completed.
• Fixed an issue where the golf scorecard page could display invalid values.

Changes made from version 5.20 to 5.50:

• Fixed an issue where the device could log an extra lap during Swim activities.
• Fixed issues with Jumpmaster.
• Fixed an issue where one couldn't Race an activity from the activity history menu.
• Fixed an issue where some devices were reporting a higher than expected battery drain.
• Fixed an intermittent issue where the device could crash during an activity.
• Fixed an issue where the GPS updates were failing to install.
• Fixed an issue where the data screen background color would remain inverted, if ending a swim workout early.

Changes made from version 5.10 to 5.20:

• Added Altitude Plot to FLY activity
• Made general bug fixes and code improvements.
• Fixed potential GLONASS operation issue.
• Fixed an intermittent issue where the device would display an incorrect sensor error message.
• Fixed an issue where some devices were reporting a higher than expected battery drain.

Changes made from version 5.00 to 5.10:

• Added configurable datafield to HSI ( FLY Settings > HSI Data )
• Improved WiFi download reliability for Navigation database.
• Fixed a potential issue with the NRST list not updating while in a FLY activity.
• Fixed an issue where a calorie alert could be shown early during a pool swim activity.
• Fixed an issue where one was unable to change the Share Mode for XERO Locations.
• Fixed an issue where non GPS activities were being displayed in the Navigation menu.
• Fixed an intermittent issue where the device may appear frozen while applying a software update.
• Fixed an issue where the sunrise and sunset times in New Zealand were not taking daylight savings into account.
• Fixed an issue where the heart rate zones could change from %LTHR to %HRMax after a software update.
• Fixed an issue where the device would connect to Varia Lights when cycling through certain widgets.
• Fixed an intermittent issue where the device was calibrating altimeter during indoor activities.

Changes made from version 4.20 to 5.00:

• Added support for Connect IQ SDK v3.0.
• Added abnormal heart rate alerts. Enable these in Heart Rate widget > Heart Rate options > Abnormal HR alert. An abnormal heart rate will be detected if your heart rate exceeds the entered threshold for an extended period of time while sedentary.
• Added coverage information to the Nav. Data start-up screen.
• Made improvements to the airport/waypoint information page scrolling.
• Fixed VSPD datafield in FLY activity to use aviation units setting.
• Fixed a potential issue with Flight Timer logic when starting FLY activity with Auto-Fly.
• Made improvements to non-aviation route recalculations while navigating.
• Made improvements to pool swim distance accuracy.
• Fixed an issue causing Cadence values to be 'stuck' when not pedaling.
• Fixed an intermittent crash when viewing SwimRun activities.
• Fixed an issue causing some activities performed on multiple devices to be double-counted when viewing Training Load on Physio TrueUp devices.
• Fixed a rare issue which could cause the watch to restart at the end of certain workouts.

Changes made from version 4.00 to 4.20:

• Added configuration option (30kt or 10kt) for Flight Timer Auto-record threshold speed when 'Flight Timer' set to 'Auto' (Settings > Activities & Apps > FLY > FLY Settings > Flight Timer Threshold)
• Added support for communication with a Garmin Xero A1i Bow Sight. The Bow Sight is capable of sending Laser Locate waypoints to the watch. These are accessible from the XERO widget (Settings > Widgets > Add Widgets > XERO) and can be further used to navigate to.
• Added Physio TrueUp support. Physio TrueUp syncs activities done on other Garmin devices, allowing your device to more accurately reflect your training status and fitness. Activities from other devices will appear in the Activities menu, and they will update your Totals for Running, Cycling, and Swimming. Your Training Status, Training Load, and VO2 Max will be updated using activities from your other devices, and your Recovery Time will be also updated using data from other devices supporting Physio TrueUp. Enable Physio TrueUp in Settings > Physiological Metrics on the device or in Device Settings on Garmin Connect Mobile.
• Added support for communication with a Garmin inReach Mini. (Settings > Widgets > Add Widgets > inReach) The widget acts as a remote and allows one to send preset texts, customized quick texts and trigger a SOS message.
• Added support for selecting alternate locations within the Sunrise and Sunset widget. (Widget > Menu > Location).
• Added the ability to save Stopwatch recording as an activity. Go to the Stopwatch control, and start the timer. Stop the timer, and select Done. You can then save your activity, which will appear in your History.
• Added the Kayak app.
• Fixed an issue preventing the downloading of Aviation Databases over Wi-Fi.
• Fixed a possible crash on the METAR widget.
• Fixed an issue with the Altimeter widget not using 'Aviation Units' when that option is enabled.
• Fixed an issue with FLY datascreens being configurable in non-FLY activities.
• Fixed an issue that could cause 0 to be displayed in the Grade data field.
• Fixed an issue that could cause the time and date to be incorrect.
• Improved the accuracy of the pace/speed target gauge during workouts.
• Added support for REM sleep phase detection and improved the accuracy of the existing sleep algorithm.

Changes made from version 3.30 to 4.00:

• Added helicopter ownship symbol option for aviation map. Settings > Activities & Apps > FLY > FLY Settings > Ownship.
• Added support for a Sunrise & Sunset widget. Settings > Widgets > Add Widgets > Sunrise & Sunset.
• Added support for an Alternate Time Zones Widget. Settings > Widgets > Add Widgets > Alt. time Zones.
• Improved rendering of aviation navigation symbols on map at larger zoom ranges.
• Improved Bluetooth connectivity with Huawei phones.
• Improved the accuracy of resting heart rate measurements.
• Improved the accuracy of All-Day Stress tracking.
• Improved the smart notification text layout for longer messages.
• Fixed an issue where the Heart Rate graph would intermittently stop updating.
• Fixed an issue where the altitude on device wasn't accurate when using the Jumpmaster app.
• Fixed an issue where Flashlight would turn off when using gestures.
• Fixed an issue where a ConnectIQ watchface would flash when downloaded using the Garmin Connect Mobile app and the device would revert back to a stock watchface.

Changes made from version 3.20 to 3.30:

• Added the ability to navigate with the FLY activity Direct-To a Saved Locations (Navigate>Flight Planning>Saved Locations and then Direct-To)
• Added the ability to view raw METAR text from within the METAR widget ('Show Raw Text' is an option in the menu on the last page of METAR/TAF info)
• Fixed an issue with the operation of Altimeter, Barometer, and/or Compass when added to, and launched from the control menu.
• Fixed an issue where Flight Plans and Courses could not be created using certain types of waypoints.
• Improved stability of Connect IQ watchfaces and applications.

Changes made from version 3.10 to 3.20:

• Fixed issue with Connect IQ Apps not receiving key press notifications.
• Improved TAF data spacing when displaying TEMPO information on the METAR/TAF widget.
• Improved METAR widget readout for visibility values between 0 and 1 mile (or km) - fractional values will be displayed in decimal format.

Changes made from version 3.00 to 3.10:

• Added support to Aviation Flight Plans navigation, Flight Plan list distances, and map rendering for Great-circle navigation between waypoints.
• Added support for configurable O2 alerts. (Settings > Sensors & Accessories > Altimeter > O2 Alert > Altitude )
• Added support for configurable Nearest Airport Search to control what airports are displayed in the NRST list and the map. Options include Surface Type, Minimum Length, Private, and Heliports. ( Settings > System > Airport Search )
• Added support for Connect IQ 2.4.1
• Added Vertical Visibility information to METAR/TAF pages.
• Improved operation of Altimeter widget when FLY activity altimeter source set to GPS.
• Improved operation of NEXRAD - will not try to unnecessarily download same patch if the patch is still valid.
• Improved User Waypoint usage in flight plans.
• Fixed VSPD datafield in FLY activity to function properly when altimeter source set to GPS.
• Fixed possible reset condition due to an interrupted NEXRAD download.
• Fixed a possible reset condition when accessing METAR/TAF data.
• Fixed an issue when adding Current Location to a Flight Plan.
• Fixed an issue displaying directional pointers on NRST list.
• Fixed 'GRADE' datafields displaying 0 after GPS fix is achieved.
• Added support for new activities like Elliptical, Stair Stepper, Floor Climb and Yoga.
• Improved the reliability to connect to Wi-Fi networks which were setup on device.
• Add Alarms to Hot Keys and Power Controls.

Changes made from version 2.30 to 3.00:

• Added additional information to the General Info and Runway details for selected aviation waypoints.
• Added support for Rep Counting during Strength and Cardio workouts. To enable Rep Counting, ensure that Settings > Activities & Apps > Strength > Rep Counting is enabled. Start the timer to automatically count reps during sets. Press the lap key to rest between sets. You can edit your last set's number of reps and weight during a rest period. Press the lap key to advance to the next set.
• Added support for All-Day Stress. To view the Stress widget, hold the Up key from any widget, and select Add Widget > Stress. You can view your current stress measurement on the widget page. Press the enter key to view a graph of your stress over the last four hours. Press Down to access the Four-Fold Breath relaxation timer.
• Added support for setting up Wi-Fi Networks on device.
• Added support for Hourly Alerts. (Settings > System > Time > Alerts > Hourly)
• Added Local time readout for flight plan Destination - this can be found on FLY activity time page with the digital watchface and UTC time.
• Improved operation of the Discard option within the FLY activity.
• Improved the back-end access for METAR/TAF data through GCM.
• Improved the rendering of the default analog watchface.
• Improved operation of Temperature widget when paired with a Tempe sensor.
• Fixed an issue where the Altimeter Widget becomes unresponsive.
• Fixed an issue where the Ascent/Descent values reported in the activity summary report pages were incorrect.
• Fixed issues with European NEXRAD patches not being displayed correctly.
• Fixed a potential issue when transferring flight plans from Garmin Pilot that would prevent notifications of a successful transfer to the watch.
• Fixed/Expanded NRST search for list display and map rendering to include small airports properly.

Changes made from version 2.20 to 2.30:

• Fixed an issue in which optical heart rate became much less precise during an activity if Connect IQ apps were installed on the watch.
• Fixed an issue in which the prompt to enter scores between holes during Golf activities was not shown.
• Fixed automatic transfer of Flight Plans from Android version of Garmin Pilot
• Fixed and improved rendering of NEXRAD image on map.
• Improved Nearest airport search.
• Improved ETE calculations in FLY Activity.
• Improved Flight Plan operations for both Direct-To and multi-waypoint navigation.
• Improved default analog watchface.
• Improved sequencing of flight plan legs for multi-waypoint flight plans.
• Improved navigation info page in FLY activity to include DTK for current leg.
• Added digital XTK readout to HSI when lateral deviation is greater than full-scale. Also added scale setting reference.
• Added configurable vibe notification for NEXRAD downloads.
• Added 'Invert and Save Copy' feature for flight plans.

Changes made from version 2.10 to 2.20:

• Improved HSI deviation for Direct-to and multi-waypoint flight plan navigation.
• Improved Aviation Navigation DB update process.
• Improved visibility of ownship icon on map.
• Improved processing of long Courses.
• Improved Connext pairing with Garmin Pilot.
• Fixed incorrect product name from being displayed in GCM sync pages.
• Fixed watchface data field settings.
• Fix Arabic and Hebrew characters not shown on map.

System requirements

1. IBM-compatible PC running Windows 2000 or later operating system and an available Com 1, 2, 3, or 4 port.
2. PC Interface Cable for your GPS unit. The PC Interface Cable may be purchased through your local Garmin distributor or ordered direct from our Online Store.

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