What does the display message “Signal Loss Alarm” mean while wearing a FreeStyle Libre 3 Plus sensor?
Check that your Libre app** or FreeStyle Libre 3 app on your smartphone is within 33 feet of the sensor.
If you continue to see a “Signal Loss” message please contact Customer Care which is available at 1-855-632-8658 7 days a week from 8AM to 8PM Eastern Time; excluding holidays.