CGM features and fixes · FreeStyle Libre 3 and 3 Plus
FreeStyle Libre 3 and 3 Plus sensor failed early: getting a replacement
If a Libre 3 Plus sensor shows Replace Sensor or falls off before 15 days, Abbott reviews a replacement through its online sensor support request or by phone. (Abbott)
What the maker says to do
- Apply and start a new sensor.
- Have the old sensor's serial number ready.
- Fill in the sensor support request at freestyle.abbott/us-en/support/sensorsupportrequest.html, or call 855-632-8658.
In the US, Abbott's Libre app replaces the FreeStyle Libre 3 app, whose App Store listing says it is not the latest app.
More on the FreeStyle Libre 3 and 3 Plus
- Follower app not updating
- Signal loss
- Sensor error
- Warm-up
- Alarms not sounding
- Follower not getting alerts
- Compatible phones
Sensor failed early on other CGMs
- Dexcom G6
- Dexcom G7
- Dexcom ONE+
- Dexcom Stelo
- FreeStyle Libre 2 and 2 Plus
- Medtrum TouchCare Nano CGM
- Eversense 365
- Medtronic Simplera
- SIBIONICS GS1
Sources, quoted
- Abbott: “If you have received the “Replace sensor” message before 15 days of wear please complete the convenient online sensor support request form”
- Abbott: “Replace the sensor and start a new sensor.”
- Abbott: “855-632-8658”
- Abbott: “You may be required to provide your sensor’s serial number which can be found in your app, your reader or your sensor’s packaging.”
Every quote is checked against its source page before each update of this site; last checked 2026-10-06. Makers change their apps; the source page is the authority when it differs.