If you're experiencing issues scanning your Freestyle Libre 2 CGM sensor, try the following troubleshooting steps.
1. Check If the Sensor Was Applied Correctly
Ensure the sensor was properly applied using the provided instructions.
The sensor tip should be correctly placed under the skin—if not, it may not function properly.
2. Allow Time for Calibration
After applying a new sensor, it requires 60 minutes to calibrate before it can provide readings.
If you attempt to scan before this, the sensor will not work.
3. Check Your Scanning Method
Hold your phone close to the sensor and try scanning again.
Ensure Bluetooth is enabled and that your phone is within range.
For Freestyle Libre 2 users: You only need to scan once to activate the sensor. After activation, glucose readings are sent automatically via Bluetooth.
If there is a break in data, scan the sensor again to re-establish a connection.
4. Minimise Interference & Environmental Factors
Avoid electromagnetic interference: Move away from sources such as powered audio equipment, speakers, and electrical boxes.
Extreme temperatures: If your sensor has been exposed to very hot or very cold environments (e.g., a sauna or ice bath), allow it to return to room temperature and try again.
5. Ensure You’re Using the Correct Sensor
Only one sensor can be active at a time—if you’ve started a new sensor, you will no longer be able to scan the previous one.
6. Wait and Try Again
Wait 10 minutes and attempt to scan again—sometimes temporary connectivity issues resolve themselves.
7. Is Your Sensor at the End of Its Life?
If you've been using your sensor for 14 days or more, it has reached the end of its lifespan and will need to be replaced.
To continue receiving glucose readings, apply a new sensor.
8. Contact Support If the Issue Persists
If none of the above steps resolve the issue, your sensor may be faulty. Please contact us at contact@vively.com.au, and we will arrange a free replacement if there is an inherent fault with the device.
By following these steps, you should be able to resolve most scanning issues and continue receiving valuable glucose insights from your sensor.