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Anyone having big reliability issues with Freestyle Libre 2 Plus sensors?

I had this problem when they first came into use, this might sound daft but are you placing it in the right area? Even now I sometimes place it incorrectly and it will start up but then fail.
 
Well I am placing it in the same place as I did with Libre 1 sensors which I never had a problem with until I started using the LibreLink App
 
MonsterLC said:
So I have been using Libre 2 for a while now and haven't had 1 sensor last 15 days. They have lasted between 8 hours and 11 days at best. I have found them very unreliable. Has anyone else had this issue? Does anyone know why these sensors are so unreliable?
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I’ve been using them for several years. Most of them last the full length of 15 days, or 14 days on the older sensors. The only problem I get occasionally is either the sticky back fails and the sensor falls off, or I hit a door frame accidentally and it’s ripped off. I’ve had about two fail due to hardware failures. But, you can always get the sensor replaced if you inform Libre. They will just send you a new one. So mostly, they are extremely reliable.
 
Celestrium said:
I’ve been using them for several years. Most of them last the full length of 15 days, or 14 days on the older sensors. The only problem I get occasionally is either the sticky back fails and the sensor falls off, or I hit a door frame accidentally and it’s ripped off. I’ve had about two fail due to hardware failures. But, you can always get the sensor replaced if you inform Libre. They will just send you a new one. So mostly, they are extremely reliable.
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What phone do you to communicate with the sensors, and how do you find the sensor values compare against finger prick tests?
 
MonsterLC said:
So I have been using Libre 2 for a while now and haven't had 1 sensor last 15 days. They have lasted between 8 hours and 11 days at best. I have found them very unreliable. Has anyone else had this issue? Does anyone know why these sensors are so unreliable?
Click to expand...
I had to stop using mine as three times a night the alarm sounded …. Thought ah! bSL needs checking….NO …. MSG said Signal Lost !!!!! So with already having to get up three time a night for the toilet due to the new Dapoglifazin drug for my CKD I was getting about an hours sleep a night! Now given up !!! Liver never answers my questions!
 
SimonP78 said:
What phone do you to communicate with the sensors, and how do you find the sensor values compare against finger prick tests?
Click to expand...
I’ve got an iPhone 16 Max Pro. I don’t bother with the finger pricks anymore because I found the sensors easily good enough. HbA1c Tests are pretty much spot on with what the Libre predicts. I’m about to go onto a close loop insulin pump so will be coming off Libres. It’s a shame because I found them to be very good but unfortunately my pump won’t support them and uses its own type of sensor.
 
MonsterLC said:
So I have been using Libre 2 for a while now and haven't had 1 sensor last 15 days. They have lasted between 8 hours and 11 days at best. I have found them very unreliable. Has anyone else had this issue? Does anyone know why these sensors are so unreliable?
Click to expand...
Abbott are very good at replacing any sensors that fall off or fail before the expected end date. For the most part over the last year and now with the Libre 2 Plus they have been fine. I don't like the 15 days though, before they always ended on the same day I started them, now it's uncertain exactly when they are going to finish so you have to plan ahead.
Talk to Abbott, they are usually very helpful.
 
Celestrium said:
I’ve got an iPhone 16 Max Pro. I don’t bother with the finger pricks anymore because I found the sensors easily good enough. HbA1c Tests are pretty much spot on with what the Libre predicts. I’m about to go onto a close loop insulin pump so will be coming off Libres. It’s a shame because I found them to be very good but unfortunately my pump won’t support them and uses its own type of sensor.
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Thanks, interesting (and I'm pleased) that they work well for you. Good luck with the pump/new sensor combo too.
 
SimonP78 said:
This is similar to what I see. It seems to be dependent on the sensor, or more probably on the sensor location. My working theory is that these ones are too close to the muscle (I don't have much fat on my arms so the available location is pretty small and I try to move it a bit between sensors to avoid aiming for exactly the same spot!)
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I alternate between left and right arms and also upper and lower. So: 1) left arm, just below shoulder; 2) right arm, just below shoulder; 3)left arm, just above elbow; 4)right arm, just above elbow.
Thus, each general location has 8 weeks between use. So (even if I somehow manage to hit the exact same spot) plenty of recovery time.
 
MonsterLC said:
So I have been using Libre 2 for a while now and haven't had 1 sensor last 15 days. They have lasted between 8 hours and 11 days at best. I have found them very unreliable. Has anyone else had this issue? Does anyone know why these sensors are so unreliable?
Click to expand...
Yeah it's like a gamble with them sometimes, I'd say nearly half of my sensors always have tons of sensor errors at inconvenient times. Maybe I'm doing something wrong idk :arghh:
 
As an update..... I have found a way of getting the "dead" sensor, 365 error, alive again.....I won't say how, because Abbott won't like it.
So I got a "dead" sensor, 365 error, replace sensor, today, it was within 24 hours of starting it up, I did "some steps" and then scanned the same "dead" sensor again..... and now the sensor works again. So this proves to me that there aren't problems with the sensor, it is the LibreLink App that doesn't work correctly. Unfortunately I have told Abbott several times that their LibreLink app has a fault, but I find Abbott are too arrogant to listen.
 
This is after the "Replace Sensor Message"?

I must admit that I've never tried as I tend to just get on and replace the sensor at this point (they are usually suffering from some other ailment so I'm happy to get an automatic replacement), though I could imaging that if the sensor itself starts working again (producing data and still within the 14/15 day lifespan) you can likely pair it with e.g. Juggluco even though the Librelink app has declared it dead and decided it's not interested in connecting again.
 
MonsterLC said:
So I have been using Libre 2 for a while now and haven't had 1 sensor last 15 days. They have lasted between 8 hours and 11 days at best. I have found them very unreliable. Has anyone else had this issue? Does anyone know why these sensors are so unreliable?
Click to expand...
Yes I’m self funding and have had 3 fall off I’ve today gone bk to finger pricking I’m type 2 on insulin
 
A T1 and been on Libre 2+ since it's release in April/May and only had a couple that have lasted a full 2 weeks, the reset keep being getting faults after about 5-7 days in, and Abbot kindly keeps replacing them, funnily enough they'd nearly perfected the Libre 2 and that was being nearly same as finger pricking, but the 2+'s they vary quite a lot between 2 - 8 sometimes, luckily the CGM is always lower than the actual blood tests.
Abbot reckons the 2+ and 2 should both be the same apart from the 2+ being more accurate
(LOL) and more resistant to coming loose (this is true), what I get sometimes in bed is
reading from CGM of '2.4' (I've given-up on the alarms from Libre as they seems to be inaccurate) so decide to go downstairs to do a blood test, which shows I'm 8.

Wondering if it's an age related things causing all the variations as I'm 68, I use it in conjunction with the mySugr app which has really helped by insulin dosage.
 
SimonP78 said:
This is after the "Replace Sensor Message"?

I must admit that I've never tried as I tend to just get on and replace the sensor at this point (they are usually suffering from some other ailment so I'm happy to get an automatic replacement), though I could imaging that if the sensor itself starts working again (producing data and still within the 14/15 day lifespan) you can likely pair it with e.g. Juggluco even though the Librelink app has declared it dead and decided it's not interested in connecting again.
Click to expand...
To answer myself, I had the replace sensor message this morning (after the sensor gave up producing data in the early hours) with the following codes reported when I scanned it (while it wasn't working):

49,130 (oldest)
Er0,2014
Er2,266
Er3,365,P
33 (newest)

(this are in chronological order but all from the same scan at 0914 this morning, i.e. the opposite way up to how it's displayed by the Libre2 Reader log view fwiw)

I was going to change the sensor after I'd had a shower, but then it started working again (talking to Juggluco), obviously it won't work with the Libre reader or app as it's already been marked as faulty by something in the log data.
 
This is an interesting Post , I have read the responses and they seem to align with my findings over the last few months.
End of last week I put a New sensor in and it went through the 60 minutes countdown , when I tried to scan it gave a sensor error message and scan again in 10 minutes. I tried 3 times and after a further 30 minutes I got a message on the app that said the sensor had switched off for the safety of the patient it should be replaced !!
I never had this sort of problem with the Libre 2 and when I firts moved over to the Libre 2 plus I was get messages late at night telling me I was low but when I checked with blood meter the CGM was 2 to 3 points lower than the blood meter.
Of course I;m getting the latest sensor replaced by Abbotts but I am goint to start keeping records of the problems I experience with Libre 2 plus system.
I will continue to watch this Post out of interest and come back with an update in the coming months.
 
Hobo1960 said:
Thanks for the info about Dexcom One. I’ve just had a look at the NHS Formulary Guidance for my area and the Dexcom is listed, so thanks for that.

Out of interest, the annual cost to the NHS of the Dexcom One+ is £911.41 and the Freestyle Libre 2 Plus is £912.50 per year.

Well done on your hypo count. It would be impossible with my lifestyle not to have low blood sugar from time to time. I can go from sedentary to slogging my guts out in a matter of minutes. My hypo awareness is excellent and my low is quickly self treated. My diabetes is tightly controlled and with my regime I would be concerned if I didn’t have an occasional low as I’d start worrying about running my blood sugar too high. After 49 years things have changed a lot. When I was diagnosed in 1976, only hospitals had glucose meters and they were cumbersome and took several minutes to give a result. It wasn’t something that you could put in your back pocket. For the first few years I monitored my diabetes by using Clinitest tablets. Every morning I had to collect a urine sample, put 4 drops into a test tube and then add a tablet to it that caused the urine to boil and change colour. Blue indicated no sugar in the urine. Yellow 1% and Orange 2%. How times have changed! I must have been doing something right as I’m free of complications. When I was first diagnosed my consultant said “If you don’t control your diabetes, the diabetes will control you”. Those words have stayed with me me!
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So funny remembering the tablets in the test tube ect I was also diagnosed around that time (1977) Unfortunately I have never been able to control my diabetes and have many complications. Getting back to problems with Libre 2 plus, my phone keeps losing signal I spoke to Abbott they explained that the phones I.O is higher than the sensors this is why it happens and they haven’t caught up yet and the only thing you can do is not update the software on the phone so the sensors can catch up which I’ve been doing. I’ve kept my O.S at 18.4 and they haven’t caught up yet. Maybe this was B.S that they told me?
 
JasminDolly said:
So funny remembering the tablets in the test tube ect I was also diagnosed around that time (1977) Unfortunately I have never been able to control my diabetes and have many complications. Getting back to problems with Libre 2 plus, my phone keeps losing signal I spoke to Abbott they explained that the phones I.O is higher than the sensors this is why it happens and they haven’t caught up yet and the only thing you can do is not update the software on the phone so the sensors can catch up which I’ve been doing. I’ve kept my O.S at 18.4 and they haven’t caught up yet. Maybe this was B.S that they told me?
Click to expand...
I’ve recently switched over to Dexcom One+ and prefer it to Libre 2 Plus. I’m on iOS 18.5 with the Dexcom. I’ve always used the reader with libre sensors as I hate having to have a phone to hand. The reader is small enough to slip into a pocket.

Sorry to hear of your complications. Sometimes I’m guilty of forgetting how much easier things are for us now! No doubt you’ll remember the metal and glass syringes that we had to boil in a saucepan for 5 minutes and the blue plastic container for storing the syringe in surgical spirit. If you failed to pump all the spirit out before drawing up insulin you’d end up with a stinging injection. The syringes would get sloppy over time as the glass started to wear. Needle size was a lottery as the length was whatever the pharmacy had in stock. Some of them were a couple of inches long. We were only offered disposable syringes when the nhs started handing them out to drug addicts! I can’t ever remember being told not to inject too deep! Can you remember the booklet listing the carb content of different items sold in supermarkets etc? This was before we had nutrition values listed on the packaging.
 
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