You can scan your sensor by following these steps below.
If you have an iOS device:
Open your FreeStyle LibreLink app.
Select the icon on the top right corner of the app’s main screen.
Hold the back of your smartphone near the sensor.
You should see your blood sugar reading in the app.
If you have an Android device:
Open your FreeStyle LibreLink app.
Hold the back of your smartphone near the sensor until you hear two sounds.
Each Android phone model is a bit different, so you may need to move your phone around a bit to scan the sensor.
You should see your blood sugar reading in the app.