What it may mean: The Sensor is unable to provide a glucose reading during the
start-up period.
What do to: Check again after the duration specified on the screen.
Display: Replace Sensor
What it may mean: The App has detected a problem with your Sensor.
What to do: Apply and start a new Sensor.
Display: Check Sensor
What it may mean: The Sensor tip may not be under your skin.
What do to: Try to start your Sensor again. If you see “Check Sensor” again on the
screen, your Sensor was not applied properly. Remove this Sensor and apply and
start a new Sensor.
Display: Sensor Ended
What it may mean: Your Sensor has ended.
What to do: Apply and start a new Sensor.
Display: Signal Loss
What it may mean: Sensor has not automatically communicated with the App in
the last 5 minutes.
What to do: Make sure your phone is within 33 feet of the Sensor and you have not
force closed the App. Tap the
symbol for more information. Try turning