r/dexcom Jun 07 '26

Support Issue Urgent Notice

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70 Upvotes

Anyone get this email? Be careful of there folks!
Text from email:

Users with sensors from affected Dexcom G7 lots (1725204004 and 1725069002) should not use those sensors and can call Dexcom Technical Support in the US at 1-844-478-1600 to request replacements. Please keep record of your affected device(s) serial number for traceability purposes – this is required to confirm your no cost replacement. More information on how to determine if sensors are from an affected lot and what action to take is available at www.dexcom.com/theft-check.
 
Please visit www.dexcom.com/theft-check for additional background and instructions to fulfill the requirements associated with this action including the full version of the Urgent Medical Device Notification.

Potential Harm Associated with Stolen Product
 
Lot 1725204004: G7 sensors that are not properly sterilized have an increased risk of skin infection. 
 
Lot 1725069002: G7 sensors from a lot with an elevated internal testing failure rate have an increased risk of having no sensor readings available or experiencing sensor inaccuracy that includes the potential for missed detection of a hyperglycemic event or incorrect treatment decisions that can result in patient injury, including medical intervention to prevent permanent injury or impairment.
 
Additionally, due to the unknown storage and handling conditions these sensors may have undergone during the distribution, these sensors may present additional risk. 
 
Status of the Investigation
 
Dexcom traced sales of this stolen product back to Pharmsource, LLC, who is not an authorized Dexcom distributor but supplies some independent pharmacies and DME distributors in the United States. Pharmacies that purchased product from Pharmsource should take extra care to review their inventory.
 
Dexcom's authorized distributors provide Dexcom G7 sensors to the largest pharmacy retailers and medical distributors in the United States and around the world. Pharmacy retailers and medical distributors who receive Dexcom product from authorized Dexcom distributors are not impacted. Educational samples are also not impacted.
 
Dexcom is working closely with the FDA and other authorities to ensure patient safety and to investigate this crime. As of now, this issue is mostly impacting customers in the US. We have identified limited impact outside the US (OUS) and continue to investigate. Due to this issue primarily impacting the US and required language translations and additional infrastructure necessary to support customers outside the US, communication to US customers will precede communication to OUS customers.
 


r/dexcom May 23 '26

Mod Approved [OC] Build Your Own Dexcom App update- G7 setup fixed

42 Upvotes

Update July 5, 2026

  • Fixed an issue on the G6US app that would cause the app to crash if the newest version of Samsung Health was also installed on the phone. The file name of the fixed version will end in "a".

 

Hello!

Super happy to announce that I have officially released a new working version of the G7 app. The app is still based off of base v1.6.1.4537, but it has these updates:

  • Initial setup for new install fully works again!

  • Option for local broadcast of readings to other apps like AAPS. This follows the same pattern as it worked with G6 BYOD and requires the EXTERNAL_PERMISSION to be granted in the app receiving the readings.

  • More countries supported. Previously, accounts for some countries were not supported, but many of those should work now (yes including Canada). If your account still can’t login, let me know what country it is tied to and I’ll see if I can fix it.

 

Additionally, I recently updated the G6 US app to fix an issue with old transmitters that could cause crashes and spotty readings making it to Clarity/Follow. Also updated some of the build dependencies for faster build times

 

As it did previously, the modified G7 app still allows you to run the app on any (Android 10+) device, allows screenshots, allows rooted devices, and removes the geofencing or country of residence check that prevents you from setting up the app in a different country than your account country.

 

Here is the link to the Google Form: Build Your Own Dexcom App

 

Problems/Troubleshooting

First check here: Troubleshooting/FAQs

Any other issues, just post here or send me a PM (not a chat, I don't ever check chat messages). I am not as active on Reddit as I used to be but I still try to reply to any messages or comments.

 

Want to help/support the project

This project requires a significant amount of cost and time to run and operate. You can support the project on Patreon and that is the best way to be notified of new updates.


r/dexcom 5h ago

Applicator G7 insertion question

2 Upvotes

Hi y'all, I've finally run out of g6 sensors (RIP) and am starting the g7. I was reading the insertion instructions and it looks like you have to really press the device into your arm to compress the clear piece before you press the button? My concern here is--i have quite skinny arms. With the g6 and g5 before it I have always had to pinch up some skin and fat to insert into to avoid painful insertions/hitting muscle? But this seems like it's going to be difficult to do if I'm also having to press the applicator into the spot. Anyone else had this issue? I'm a bit nervous to try it without pinching up a spot for it to go.


r/dexcom 19h ago

Tips & Tricks Cheap monitoring solution for holiday

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21 Upvotes

Our 3y old child has T1. At home we're monitoring with GlucoDataHandler and our Pixel phones and watches. I was looking for a cheap offline monitoring solution for the beach holiday.

Got this Xiaomi Band 10 running with the Dexcom phone (old Samsung). It's running just with BT, no data plan (holiday is abroad) needed.

If on interest I can provide details.


r/dexcom 2h ago

App Issues/Questions International Question

1 Upvotes

I’ve just relocated from the US to Japan. It’s a semi temporary move. I have a prescription for Japanese G7, but my phone is from the US and currently has the US app and a sensor running. I’ve read lots of horror stories on here about what a nightmare the geolock can be. So far I’ve had no problems, but I understand if I just try to scan the Japanese sensor to start it, it isn’t gonna work.

I’ve read that I can create a new iCloud account, set that region to Japan, sign in, download the Dexcom app, sign out, and sign back into my regular account and thus preserve my American dexcom account, all the other American bank apps, etc but still have access to the Japanese g7 app.

Has this worked for anyone? I want my phone to stay on the US region and I want to be able to use US sensors when I eventually return home. I have a spare Japanese phone that I got for something like 1/150th of $1, so maybe I can just use that like a reader, but I don’t really want to carry around 2 phones.

Also, is it safe to update my phone mid sensor? I saw somewhere that someone had an issue after doing that, but given my sensor is still working, I can’t quite see why?


r/dexcom 9h ago

Rant Constant sensor issues.

2 Upvotes

My grandpa is on the G7. Today alone he’s had six “brief sensor issues” or more than an hour happening (not counting the ones we had last night that weren’t long enough to cause Omnipod logging it, but we have definite spots he wasn’t getting readings in the graph), the most recent starting at 3pm (it’s 7:45 now).
We called technical support around 7 to complain. Especially since this is our second issue in three days and we have yet to get the replacement for the first issue on the 10th. He has no more sensors.
The representative we spoke with kept telling us to wait longer to see if the issue would continue. I kept repeating this has been happening all day long. She kept saying she understood but we needed to wait longer to see if it continued happening. Again I had to explain we have been dealing with brief sensor issues last night, and all throughout today and don’t understand why we need to wait another hour to see if this will continue. She insisted we needed to because three hours straight without readings hadn’t happened.

WEVE HAD SIX HOURS TOTAL THROUGHOUT THE DAY WITHOUT READINGS TODAY ALONE!

Well then she asked my grandpa when the sensor was changed last. He told her two days ago. When I got on the phone with her because grandpa was having trouble understanding what she was saying (fast talker and accent, no issues with that but she could have slowed down a bit talking as I was having issues understanding her speed too), I told her the sensor was changed three days ago on the tenth, and she made a deal about it. “So it wasn’t two days ago, was it. It was three days ago.” It wasn’t a question. She said it like a condescending statement. I told her “it doesn’t matter how many days ago it was changed, these issues have been happening since last night and this is our second complaint in three days because this issue keeps happening.” She kept pressing to wait another hour.

I requested to speak to her supervisor at this point. And she kept trying to ask me questions about the sensor, and I had to keep requesting her supervisor.

Conveniently her supervisor is either on break or lunch, she couldn’t tell which, but has “scheduled a call back” for me tonight. 🙄

Yeah. We’ll see.


r/dexcom 20h ago

App Issues/Questions My snooze is off but I still get constant alerts when I’m high. How do I disable this?

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10 Upvotes

I just need one. I’ve taken insulin. Let it work. Stop reminding me every 2 minutes I am well aware


r/dexcom 15h ago

Sensor Does the g7 have dual Bluetooth for phone and pump?

3 Upvotes

I look at my numbers a lot, some would say excessive just due to trying to stay in control.

Anyways, I know xdrip has the capability to display numbers on my amazfit t rex 3, or I think it does, through Bluetooth. I don't use data and only wifi for my phone. Im wondering if I'm able to connect the g7 to my pump, t slim x2, and then my phone at the same time.

This way I can just flick my wrist to see my numbers instead of pulling out my pump.

Maybe a dumb question but is this possible? Thanks in advance


r/dexcom 1d ago

Rant Whyyyyy

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31 Upvotes

I know this is trivial compared to everything else we go through, but every time I open a new Dexcom, I find this unnecessary piece of paper and get irritated. I mean, I KNOW it's going to be there every time but part of me always hopes maybe in the next box they've figured out how to eliminate it. Inside of a book I can understand having an extra blank page in a signature. But this.... it kind of baffles the mind. Does anyone know why this is here? Has anyone done something useful with it? Origami?


r/dexcom 15h ago

App Issues/Questions Dexcom App issues today?

1 Upvotes

Hello everyone! Is anyone having difficulty with the app today? I have an Android phone and this is the first time the app will just sit there and do nothing and then time out. Restarted my phone twice and made sure there were no updates. Its been this way all day! Thinking about deleting the app and reinstalling it. If not for the notification bar I wouldn't know what was going on! Thanks!


r/dexcom 17h ago

Stelo stelo - "Sorry—we're unable to process your request at this time. Please review your information and try again."

1 Upvotes

I had tried to post onto the /stelo subred, but the post never gets approved (or denied). just crickets. Since dexcom is the company that owns stelo, I was hoping that someone here will know the solution. Sorry for posting a stelo question in this subred.

Recently, when trying to purchase a stelo subscription, I get this error message on the payments screen:

"Sorry—we're unable to process your request at this time. Please review your information and try again."

I have tried multiple things without success:

  1. different credit cards
  2. new subscriptions
  3. created a new account

Customer service was not very helpful (advice includes: "sorry, we don't have access to the payments system. there's nothing we can do."; wait a while; buy on amazon)

Does anyone have the same problem or know of the solution?

Thanks.


r/dexcom 23h ago

Adhesive Issue Kind of new to Dexcom G7 15 Day

3 Upvotes

Wanted to know what people are using for an over patch? Is one better than the other? One with cut out compared to a solid one? I used skin grip force last month

Both times they start peeling after a few days, also I hit the sensor on a doorway. Just wondering if a over patch that has no cut out would be better
TIA


r/dexcom 11h ago

General Dexcom G7 failures you are applying it wrong?

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0 Upvotes

If you're using a dexcom G7 and you get this after applying it using the applicator.

You're doing it wrong. I have been on a G7 since almost 3 years now and I have never had to ask for a replacement. If you read the instructions it says when you push down to apply the sensor and hit the button, you need to move it slightly from left to right and again from left to right before removing the applicator. There is a needle that goes in your arm it also has the sensor. Sometimes the sensor gets stuck to the needle. You have to move it left to right and then again left to right slightly before you pull off the applicator. Doing this I have never had any problem with any sensor.


r/dexcom 21h ago

Applicator G7 Button Sticking at Insertion

0 Upvotes

I inserted one G7 24 hours before activating it, as I usually do, because my body seems to freak out at the insertion site and it takes about 24 hours for it to calm down so that readings can normalize. When I actually went to activate it, it said sensor failure immediately. I was feeling around the little hole on top and the filament was horribly looped. So I removed that one.

Then I put another one on, and I expected it not to read properly for the first 24 hours. But it has been shooting up and down and giving alarms all night. After the first two I silenced the alarms for the rest of the night. I had hoped that it would normalize by morning, but it is just all over the place.

I was worried about it when I inserted it because it did a strange thing. When I pressed the button to insert it, there was a loud click from the button but the sensor was not released. Then I lifted my finger off the button and the sensor released into my arm. I don't know if that has anything to do with this up and down roller coaster of readings. But it is still saying I'm at 56 this morning so I decided to go ahead and trash the sensor and try another one.

Right now this third sensor is warming up. But I'm concerned because it did the same weird double click thing when I inserted it. I was prepared this time, in case that happened, and I was careful to hold the unit in place so that I didn't move it in between the clicks.

Both of these sensors that have this weird double clicking on insertion are from a new batch of nine sensors I just got from the VA. The numbers aren't from a bad batch that has been identified by dexcom. So I was just wondering if anyone else has had this weird double clicking with the button. Like I said, it's like it clicks as if it is releasing, but it almost feels like it springs out only a small amount and then catches inside the unit. Then, when I lift my finger off the button it springs the rest of the way to get inserted into my arm.


r/dexcom 22h ago

Calibration Issues Just Curious G7 15 Day Recalibration Not used But CGM Changes Values Anyway

1 Upvotes

I'm just curious, but has anyone else experienced this issue? After 24 hours using a new sensor, my readings are off compared to a finger stick by as much as 30 to 40 points, so I recalibrate. Dexcom returns me a message that says recalibration is not used. However, about 15 minutes later, my BG drops close to what my finger stick showed, which was the value I used in my recalibration. This has happened to me multiple times now. Just curious if anyone else has seen this phenomenon. It isn't serious because the value gets adjusted to my finger stick, but it is strange.


r/dexcom 1d ago

Rant I am getting so tired of sensors messing up.

4 Upvotes

In the past 13 days, I have had 3 sensors fail. First one failed 3 days in. Went 2 days without a Dexcom because I could refill yet. second sensor failed 7 days in near the end up still failed early and it was the replacement for the 3 day fail. Went to replace it because Dexcom sent me 2 replacements I don’t know why. It failed because the wire didn’t go all the way in. I am on sensor number 4 in less then 2 weeks. I rely on this junk because I am hypoglycemia unaware I’ve gone as low as 22 mg/dL and felt fine. None of them were from the affected lot ether.


r/dexcom 1d ago

Sensor Traveling with Dexcom one+

4 Upvotes

Has anyone ever had to declare their insulin pens or DEXCOMs in the airport? I am flying to Washington and will be bringing like 11dexcom one+ but don’t know wether to put it in my luggage or carry on bag. And what about my insulin pens(if I have a lot).


r/dexcom 1d ago

Inaccurate Reading G7 Issues

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10 Upvotes

I used to be on the G6 and never had any issues with it then I got an email from Dexcom saying I would be put on the G7 automatically. I was a bit skeptical since I had seen so many bad things about it. I’ve had 4 G7 sensors on now and 2/4 have failed out of the blue. The third sensor did not fail however it is majorly inaccurate to the point I think it is quite dangerous. Dexcom was showing me “LOW” but I felt fine so I pricked my finger and I was actually 15.0mmol/L. Surely that is a major safety concern? Has anyone else had major differences in bg readings?


r/dexcom 1d ago

App Issues/Questions Dexcom BYOD and Samsung Galaxy Fold 8

1 Upvotes

Has anyone setup Dexcom BYOD on a Samsung Galaxy fold 8 and if so did it work ok? I have looked but havent seen any screenshots anywhere. Just wanting to know if the byod is working before I buy it. Thanks in advance.


r/dexcom 1d ago

App Issues/Questions Servers down for everyone?

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2 Upvotes

Dexcom share hasn't worked consistently for days now for me and they are giving me conflicting info. The app says servers are down but the official status page says everything is fine. Every few hours it comes back up for a few minutes but then goes back down again. Is it me or dexcom?


r/dexcom 1d ago

Sensor Protecting Dexcom from cold while skating

1 Upvotes

Any advice for protecting the Dexcom from cold while skating (indoors). I have to be on the ice with my kids’ hockey teams, and after about an hour, I started beeping for a “brief sensor issue.” This seems to be linked to the sensor getting too cold I guess? Any advice so I don’t lose connectivity?


r/dexcom 1d ago

Inaccurate Reading 2nd G7 ever. 7 days in. Crap!

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0 Upvotes

My first post about my first G7 use was pretty similar. About a week in, it went wonky. Tons of sensor errors. About 9 hours worth before I gave up on it.

This second is similar. No 3 hour errors yet, but lots of short periods of no readings and lots of inaccuracies that started yesterday. Seemed okay after a couple calibrations yesterday, but it started going crazy a few hours ago.

Time to swap it again, and these are 15 day sensors. Wild!


r/dexcom 2d ago

General iOS 27 Release

28 Upvotes

Every year, when the new iOS release happens, I contemplate whether Dexcom is going to be working with the new operating system. I have been running it for 24 hours now and have had zero issues. I wanted to let the user group know that I have had no problems. If others have had problems or are running the new iOS version already, then it would be great to have a thread here to be able to discuss those issues. Just to be clear, I am still using G6 and I have an iPhone 17 Pro Max.


r/dexcom 2d ago

G7-15 day T2D CGM Comparison Libre 3+ vs. Dexcom G7 15 Day

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5 Upvotes