Garmin Edge 840 Owners Manual - Page 77

Replacing the Cadence Sensor Battery, Troubleshooting, Resetting the Device

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Replacing the Cadence Sensor Battery NOTE: Use these instructions for product models that have a coin slot on the battery door. The device uses one CR2032 battery. The LED flashes red to indicate a low battery level after two revolutions. 1 Locate the circular battery cover on the back of the sensor. 2 Twist the cover counter-clockwise until the marker points to unlocked and the cover is loose enough to remove. 3 Remove the cover and the battery . 4 Wait 30 seconds. 5 Insert the new battery into the cover, observing polarity. NOTE: Do not damage or lose the O-ring gasket. 6 Twist the cover clockwise until the marker points to locked. NOTE: The LED flashes red and green for a few seconds after battery replacement. When the LED flashes green and then stops flashing, the device is active and ready to send data. Troubleshooting Resetting the Device If the device stops responding, you may need to reset it. This does not erase any of your data or settings. Hold for 10 seconds. The device resets and turns on. Restoring the Default Settings You can restore the default configuration settings and activity profiles. This will not remove your history or activity data, such as rides, workouts, and courses. Select > System > Device Reset > Reset Default Settings > . Clearing User Data and Settings You can clear all user data and restore the device to its initial setup. This removes your history and data, such as rides, workouts, and courses, and resets the device settings and activity profiles. This will not remove any files you added to the device from your computer. Select > System > Device Reset > Delete Data and Reset Settings > . Troubleshooting 71

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Replacing the Cadence Sensor Battery
NOTE:
Use these instructions for product models that have a coin slot on the battery door.
The device uses one CR2032 battery. The LED flashes red to indicate a low battery level after two revolutions.
1
Locate the circular battery cover
on the back of the sensor.
2
Twist the cover counter-clockwise until the marker points to unlocked and the cover is loose enough to
remove.
3
Remove the cover and the battery
.
4
Wait 30 seconds.
5
Insert the new battery into the cover, observing polarity.
NOTE:
Do not damage or lose the O-ring gasket.
6
Twist the cover clockwise until the marker points to locked.
NOTE:
The LED flashes red and green for a few seconds after battery replacement. When the LED flashes
green and then stops flashing, the device is active and ready to send data.
Troubleshooting
Resetting the Device
If the device stops responding, you may need to reset it. This does not erase any of your data or settings.
Hold
for 10 seconds.
The device resets and turns on.
Restoring the Default Settings
You can restore the default configuration settings and activity profiles. This will not remove your history or
activity data, such as rides, workouts, and courses.
Select
>
System
>
Device Reset
>
Reset Default Settings
>
.
Clearing User Data and Settings
You can clear all user data and restore the device to its initial setup. This removes your history and data, such as
rides, workouts, and courses, and resets the device settings and activity profiles. This will not remove any files
you added to the device from your computer.
Select
>
System
>
Device Reset
>
Delete Data and Reset Settings
>
.
Troubleshooting
71