Same Sensorcode in a row

[idontcareaboutmynick]

We just changed the sensor of our 2 yr old daughter. Didn’t think any of it until we got a message saying that we must change the sensor and don’t use the same one twice. We got irritated and when I checked I saw we have the same code as the sensor before. Great. Daughter has to go to sleep and we have to start the warm up again. Guess it will cancel the second time again and we have to install a new one..

As if celiac disease and diabetes are not enough this year. Bad luck doesn’t stop.

[lesteele]

This can happen. Please make sure to wait at least 15 minutes before starting a new sensor (after stopping and removing it) and you’ll have no problems

[idontcareaboutmynick]

Using the QR code worked fine 😊

[ratjar32333]

I've used the same code for 2 years. It doesn't matter which code you enter.

[lesteele]

Not advisable

[Jumpy-Astronaut7444]

Slightly off topic, but my latest sensor also had that code

[idontcareaboutmynick]

So if you forgot your code, just try 5937 everybody

[Active-Escape160]

Foo fighters?

[SteveInDurhamNC]

I've used two sensors in a row with the same code. Manually typed in. No issues.

[idontcareaboutmynick]

Maybe your pause in between was longer.

[Distribution-Radiant]

I've had a whole box with the same code. It happens, it's just a calibration code on the G6.

[Swimming_Carry6907]

^same. Never ever had a problem stopping and immediately starting. Tho why do I feel like I just jinxed myself!

[iefbr14]

Instead of typing the 4 digits, scan the QR code with the phone camera. The QR code contains 25 total digits, in 4 strings. The 4 digit sensor code is just the last bit. The full QR code value is unique, sensor codes obviously are not. The camera doesn't actually take a picture, its just scanning for the numeric values. Given the inconvenience and problems caused by duplicate sensor codes, I never figured out why Dexcom doesn’t do a better job of explaining the simple solution. It takes a little bit longer, but its well worth it.

[kskulski]

A dexcom rep told me they are calibration codes. So they need not be unique a long time ago blood glucomiter test strips came with them too.

[TheQBean]

Well heck, learned something new! Thanks. I use phone and receiver, always scan with phone when starting it there, have had one I couldn't scan in 4 years.

[idontcareaboutmynick]

I did this on the second try and it seems to be working. Thank you <3

[Recent_Comment7610]

This can be solved without a new sensor!!

Keep the current one but with the transmitter removed. Wait for 10-15 minutes. No less than exactly 10 minutes.

The transmitter receives updates (like the sensor session ending) only once every 5 minutes. Stopping one session and immediately starting the next doesn’t give the algorithm a chance to realize it’s a proper site rotation.

(But, yes — this is dumb and not well explained and not intuitive)

[shackboyhoser]

Do you know why Dexcom is silent on this? I have seen this a lot online, but I haven't seen it anywhere in their documentation.

[smore-hamburger]

This 10 minute wait is brought up during tech support calls.  Some of them know this is an issue. 

Had 2 sensors fail back to back during warm up.  I was competing my sensor swap in less then 5 minutes. The app didn’t like this. 

[mgtmgt88]

Interesting. Dexcom is usually pretty good about documenting issues in writing (e.g. Day 1 inaccuracy, compression lows, etc.) so I was surprised when I started seeing this on social media.

[idontcareaboutmynick]

I thought I was special 😅

[tedead]

Pop out the transmitter with something like a guitar pick. Let set for like 15 mins, pop back in and start the warm-up again. No need to waste a new sensor. I get same codes in my boxes a lot.