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My Sibionics G3 sensor isn't working — what should I do?

Here's what to do if your Sibionics G3 CGM sensor isn't working properly.

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Written by Anna Tondo

If your Sibionics G3 sensor isn't connecting or providing readings, follow these troubleshooting steps.

1️⃣ Check Sensor Application

  • Ensure the sensor was applied correctly following the instructions. The sensor tip must be properly inserted under the skin.

  • If the sensor was partially dislodged or not fully adhered, it may not function correctly.

2️⃣ Allow Time for Warm-Up After applying a new sensor, wait 60 minutes for it to warm up. It will not provide readings before this time.

3️⃣ Check Bluetooth

  • The Sibionics G3 connects to the Vively app automatically via Bluetooth — no manual scanning is required.

  • Make sure Bluetooth is enabled on your phone and that your phone is within normal range of the sensor.

  • Avoid sources of electromagnetic interference, such as speakers, electrical boxes, or other powered devices.

  • If the Bluetooth connection drops, data will stop flowing from the Sibionics app to the Vively app. To restore it, open the Sibionics app first, wait a moment, then open the Vively app. Data should resume shortly after.

4️⃣ Environmental Factors to Consider Extreme temperatures (hot or cold) can affect sensor performance. If your sensor has been exposed to high heat (e.g., sauna) or extreme cold (e.g., ice bath), move to a neutral temperature environment and allow it to stabilise before checking again.

5️⃣ Using Multiple Sensors? Only one sensor can be active at a time. If you've started a new sensor, your previous sensor will no longer be active.

6️⃣ Wait & Try Again If the issue persists, wait 10 minutes and check the Vively app again.

7️⃣ Check Sensor Lifespan Have you been using your sensor for 15 days or more? If so, it has reached the end of its lifespan and will need to be replaced with a new one.

8️⃣ Contact Vively Support for Assistance If none of the above steps resolve the issue, your sensor may be faulty. Please email contact@vively.com.au. We'll assess the situation and determine whether you qualify for a replacement. We're here to help!

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