Medtronic GUARDIAN Manuel D'utilisation page 19

Note: If the Guardian app is in "Alerts Disabled", the app will not send any alerts, including the
Urgent Low Alert.
Glucose alerts can be customized and are set up as described in Alert settings, page 20.
System status alerts
The Guardian 4 system also has system status alerts that provide information about actions needed
to ensure the correct functioning of the system. See the status alerts table below for a complete listing
of these alerts. For more information on how to address these alerts, see Troubleshooting, page 34.
The status alerts in the Guardian 4 system are listed below:
Make sure to act on these alerts to continue to receive SG information in the future.
Alert type
Mobile device battery low
Calibrate now
Calibration not accepted
Change sensor
Lost communication
Sensor end of life
Sensor updating
Transmitter battery empty
Transmitter error
Jailbroken device detected
Rooted device detected
Description
The mobile device battery has reached or fallen below 20% of its
power.
Measure the BG value with the meter and calibrate the sensor to
get SG readings.
The BG meter value could not be used to calibrate.
The sensor is not working properly and needs to be replaced.
The Guardian app and transmitter have not been communicat‐
ing for 30 minutes. The app may have closed if there are too many
apps running at the same time or if there is radio frequency
interference.
Sensor has reached its maximum life of 7 full days.
The sensor is updating and no SG information will be available.
Measure the BG value with the meter.
The transmitter battery is empty and needs to be recharged. The
app is no longer receiving sensor information.
The transmitter is trying to fix a problem.
The software on the iOS™* mobile device has been changed
such that it no longer works in the way the manufacturer inten‐
ded. The app cannot be used with a jailbroken device. Changing
the mobile device operating software causes the app to stop
working.
The software on the Android™* mobile device has been changed
such that it no longer works in the way the manufacturer inten‐
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