I've been on the Libre 3 ~ since May 2022. No issues until this year, I now have the 4th sensor fail in a row. They each last around 7 days and I then I get sensor error on my phone followed by error code 373,A , 57 and sometimes 4011 , 4212 , 4227 and 4224 in the error log. They never recover and I'm back to finger pricking. I ask Abbott for some advice on these errors but nothing is ever forthcoming. I also want to send the sensors back so they can analyse them and they can fix these faults in the future releases , but they never ask. It takes over 1 month to get replacement sent and it often entails multiple patronizing generic replies before getting the message across.
Very frustrated , they also seem to be less accurate than Libre2. I always seem to be 20 mg/dl higher on the sensor than finger pricking. I really don't know anymore which one to believe.
A suggestion.
If anyone believes that (a) a glucose sensor failure (or run of two or more sensor failures) or (b) issues getting their flash or continuous glucose monitoring software app on their mobile phone to scan or provide low or high glucose alarms they have set has delayed them self-diagnosing or treating low or high glucose, please consider going online and reporting it to the appropriate medical devices regulator in your country.
In the United Kingdom that regulator is the Medicines and Healthcare Products Regulatory Agency ("MHRA") who operate a Yellow Card reporting scheme for drugs and medical devices. In the USA the regulator is the Food and Drug Administration.
Your medical device regulator is there to ensure that drugs and medical devices that they authorise to be made available to the patients/consumers are safe, work and fit for purpose. These regulators have the power to order that drugs and medical devices that do not remain safe, work and fit for purpose are removed from the market.
The regulators cannot do anything if they don't know there are issues.
Patients/consumers should not assume that the manufacturer of a drug or medical device, or the developer of a licensed medical device app, will necessarily keep the regulator fully informed about what is happening or do so in a timely way.
My understanding is that over the last four/five months the MHRA received a significant number of Yellow Card reports from patients about the Librelink app not providing low or high glucose alarms on some Android phones following the recent updates that the app developer made to the Librelink app, as well as the recent update of the Android phone operating system from OS 12 to OS 13. I would be surprised if those reports didn't prompt the software developer of Librelink to issue finally a belated statement to confirm that there is indeed a compatibility issue with OS 13 and Librelink which the developer is currently still working to put right.
