Issue with Ypsopump, Freestyle Libre 3, and CamAPS: sensor stops after a few days with error codes 4227 and 4130

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LucWLR

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Hi everyone,

I’m facing an issue with my closed-loop system using the Ypsopump in combination with the Freestyle Libre 3 and CamAPS app. My sensor stops working after only 3 to 4 days. The event log shows error codes 4227 and 4130, and what’s interesting is that the error is always logged with a date and time in the future.

When I compare the time the sensor was inserted with the date and time of the error, there’s always a difference of exactly 42 days and 16 hours. It seems like the system thinks the sensor is already 14 days old, which is why it stops working. I’ve tried all the usual steps to reactivate the sensor, but nothing works.

Abbott (Freestyle Libre) says they don’t recognize this issue, and their customer service hasn’t been able to help me so far. Has anyone experienced this problem before or have any ideas on how to resolve it? Any tips would be greatly appreciated!

Thanks in advance for your help!
 
I would hope/expect that Abbott are replacing the sensors which are failing early. If not then you need to be more robust in how you report the failures or asking to speak to a manager AND taking it up with your pump DSN.

How many sensors have you had fail like this and have you had any successes or have all your Libre 3s failed?
How long have you had this system?
Have you checked your phone to ensure it is working correctly and the CamAPS app is also timed and dated correctly. Is it possible that a recent OS update has caused a problem with the LibreLink app. I am guessing CamAPS works with LibreLink. Have you tried uninstalling and reinstalling the LibreLink app which seems to be the weak link with the Libre system more than the sensors themselves?

We have very few members of the forum using Libre 3 or Ypsomed, so I am not sure how many replies you will get from other users of this system but just wanted to ask for more info so that people who are familiar with this set up, will have more to go on in order to help you.
 
Welcome @LucWLR 🙂 I can’t think of anyone here who uses Libre 3, but a number use CamAPS. However, the ones I can think of use it with a Dexcom. If you still can’t sort the issue, does the Ypsomed work with another type of sensor?
 
rebrascora said:
I would hope/expect that Abbott are replacing the sensors which are failing early. If not then you need to be more robust in how you report the failures or asking to speak to a manager AND taking it up with your pump DSN.

How many sensors have you had fail like this and have you had any successes or have all your Libre 3s failed?
How long have you had this system?
Have you checked your phone to ensure it is working correctly and the CamAPS app is also timed and dated correctly. Is it possible that a recent OS update has caused a problem with the LibreLink app. I am guessing CamAPS works with LibreLink. Have you tried uninstalling and reinstalling the LibreLink app which seems to be the weak link with the Libre system more than the sensors themselves?

We have very few members of the forum using Libre 3 or Ypsomed, so I am not sure how many replies you will get from other users of this system but just wanted to ask for more info so that people who are familiar with this set up, will have more to go on in order to help you.
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Thank you so much for your response and for trying to help me. I really appreciate it, and I hope that someone may be able to assist me further. Unfortunately, this issue happens with every sensor I use, and it's been ongoing for over a year now, which has caused my readings to be quite poor. Whenever I request replacement sensors, I only receive them about 1 out of 10 times.

In the meantime, I’ve tried using three different Samsung phones, all of which I reset completely without installing any other apps, including LibreLink/LibreView, but the problem still persists.

To answer your questions:

  • I’ve had several sensors fail in this way, I don’t have an exact number but over 20. So far, all of my Libre 3 sensors have failed.
  • I’ve been using this system for over a year now.
  • Yes, I’ve checked my phone settings to ensure they are correct, and I’ve made sure the CamAPS app is properly synced with the date and time. It’s possible that a recent OS update may have caused an issue with the LibreLink app, but I haven’t seen any clear indication of that. I also tried uninstalling and reinstalling the LibreLink app, but unfortunately, that didn’t resolve the issue either.
I understand there might be limited responses due to the low number of forum members using Libre 3 or Ypsomed, but I appreciate your questions and hope it gives more insight to others who may be familiar with this setup.
 
Wow! If it has consistently happened with the best part of 20 sensors without any successes, then it has to be something other than sensor faults.
I believe there is a CamAPS facebook group and a Libre group on Facebook and I wonder if you might find more Libre 3 and CamAPS users there who would have some ideas. I think you need to speak to your team about the issues and particularly Abbott not replacing sensors and discuss moving to a different system ie Dexcom G6 because the NHS cannot afford to continue to fund sensors for a system which is not working and clearly it is not helping you having so many failures, particularly with a closed loop system.
 
LucWLR said:
When I compare the time the sensor was inserted with the date and time of the error, there’s always a difference of exactly 42 days and 16 hours. It seems like the system thinks the sensor is already 14 days old, which is why it stops working.
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That's a nicely specific error case. I'm really surprised Abbott (or the CamAPS people) can't work out what might be happening or at least offer suggestions of things to try.
 
Speak to Ypso direct. You should report any error codes on the pump to them. Also if you have the Libre 3 app on your phone delete it, Libre 3 works with the Ypso pump via Cams APS that is where you start the sensors.
 
Hi camAPS user with Dana i and dexcom here. Sorry to hear you’re having a bad time with the system. Can I ask what make and model of Samsung phone you are using please?
 
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