Thats a good idea, Marie20. We could introduce ‘noise.’ That might be kinda easy. Its BT, everything disrupts it.
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THE FUTURE OF DEXCOM WITH CEO KEVIN SAYER
WRITTEN BY: Todd Boudreaux
# What can we expect from G7?
Dexcom G7 takes all the good of G6 and takes it to another level. The whole system becomes disposable, the transmitter and sensor all become one piece…
Looks like their goal is to become a freestyle libre 2.
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I am Medicare Dexcom G5
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I’m way back on the G4, still one more G4 transmitter till I switch to the G5 and maybe the G6. I’m on Medicare and am waiting for Dexcom to get organized to finally supply G6. I am quite content, however, with my trusty G4 setup.
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So there’s a bit of confusion—on my part at least—about this:
OTOH, this quote from the Beyond Type 1 interview with Dex CEO Kevin Sayer:
It was recently announced that Dexcom is the official iCGM partner of Tidepool Loop — Can you tell us a little bit about how that partnership came about?
I’m thrilled that it has come about. I have a tremendous amount of respect for Howard Look (Tidepool Founder and CEO) and what they’re doing. We have tried to be interoperable throughout our whole history …
When [Tidepool] approached us with the idea, and it was quite a while ago, I was very excited about it. At the end of the day, CGM can be a driver for good, and the most important thing is for patients to interact with the management options of their choosing. We have learned that there are some patients who want to interact with the pen. We’ve learned that there are patients who want to interact with the pump. We’ve learned there will be patients who will prefer one algorithm to another or one pump to another. We want to be the CGM system that works with everything.
These things seem a bit at odds with each other, but I get that there’s a distinction between xDrip, which is an interface alternative, and delivery systems, which is what he’s talking about here. Presumably those systems won’t be allowed to do what xDrip does, which is to circumvent all the built-in road blocks within the CGM itself—battery life, restarts, warmups etc.
Has anyone actually tried to connect to xDrip with one of the new transmitters? I did try it with my previous one when I got the battery fail notice. It says it’s G6 compatible and It paired up ok, but no data came across.
Are you using Android or iPhone? Android users, Implementing XDrip with Dexcom Share & Nightscout: xDrip with Dexcom Share · StephenBlackWasAlreadyTaken/xDrip Wiki · GitHub
In general, it used to be true that Android users —> XDrip. IPhone users —> Spike
Current documentation says that you must be using at least ios 11, which you probably are. But, I think your a MT pump user. Were you running Dexcom Share?
Note: I wouldn’t try to set up any funny business until they have some time to work with your transmitter. Its a sticky point because its new. But, it will get figured out. My transmitter is also fairly new and is just getting rolling now. They suspect it has different underlying firmware. But, I take that with a grain of salt. There are so many different transmitters and unknown underlying firmware versions that info is hard to come by.
If you have a newer Dexcom transmitter, its kinda your job to be testing this stuff. (I’m slacking off on the job). Except @DrBB, your on vacation until they get a foothold. Once someone has a solution, you should test it.
iPhone, should have specified.
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Sorry, should have specified more clearly. It seems Dexcom will make their transmitter compatible with 3rd party developers of their choosing. I’m just going off info from other sources. It’s a pretty safe bet people are hard at work trying to hack the new transmitter.
I found the paper on CGM’s addressing Dexcom’s concern with patients restarting the Dexcom G6:
Calibration_free_CGM-kushner.pdf (1.9 MB)
If you refer to Pg 7, it says
The Dexcom G6 CGM System was granted De Novo clearance in March 2018 by the US FDA as the first of its kind interoperable CGM (iCGM) System. The FDA also published several special clinical performance metrics for an iCGM. One of these special controls requires manufacturers to demonstrate that The device must include appropriate measures to ensure that disposable sensors cannot be used beyond its claimed sensor wear period. Dexcom is obligated to take measures at all times to prevent sensors from restarting and as such must continually evaluate design mitigations to ensure adherence to this special control.
The latest generation G6 transmitters (those starting with 8G) are the rollout of Dexcom’s continuing design mitigation to prevent users from extending G6 sensor use.
Long live the G4 and G5 
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And the citizen activists who wish to use their technology unemcumbered by the “protections” of the manufacturers will forever devise work-arounds to these mitigations. The patient agenda is not completely congruent with the manufacturer or regulator agendas.
We patients deserve a legitimate place at the table where these decisions are made yet the traditional decision-makers are not comfortable with our newly found power.
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I completely agree @Terry4, however I can see how the FDA requirements of meeting “special clinical performance metrics” for a CGM to qualify as a iCGM left Dexcom few options but to close some doors for extending G6 sensors.
I’m glad they’re not reverse engineering the G4 or G5 algorithms.
That is 100% guarantee if they want the FDA stamp of approval.
Exactly. This has nothing to do with agreeing or not.
It is about understanding the rules which are currently in place.
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He’s referring to the 81, not the 8g Firefly.
My bad 
I’ve removed the post
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I think that its kinda important to point out that if you get a new transmitter shipped tomorrow, it could be an 81 or a 8g or something else. The SN may not be as specific of an indicator of how the thing ought to behave as the firmware version is. So, in the Dexcom app, go to Settings --> Transmitter --> Firmware. I’ll ask Paytone if we have the same version.
1.6.5.25 - but I got it about 4 months ago.
So does Spike work to restart the older transmitters? I have an iphone and I just downloaded it. I had hoped to reset my transmitter so I can keep extending my sensors longer with the older transmitters…
I’m with you on having a few extras around. I’m currently one ahead because a sensor stopped sending readable readings before the 10-day session ended (multiple hours with nothing recorded). Called tech support, and they sent me a replacement. I’d rather have a few more. And, like the original poster, I seem to have not so many good insertion sites.
Actually, I think I’d rather have my G5 back.
As for restarting sensors (80xxx transmitter), I’ve had two successful restarts by saving the tab that has the code number and UID code on it. I start a new session with no code, wait 15 minutes, then stop and start a new session, and enter the code via a new picture from my iPhone. Only recently thought to try that, so that’s why so few successful attempts. No idea how it works with the receiver; I accidentally laundered my receiver, so only have the iPhone to work with.
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My transmitter serial number is 80xxxxx…
My transmitter firmware version is v1.6.5.25…
I replaced the battery in mine 3 days ago and reset the transmitter age to 0 days 0 minutes using the XDrip+ trick “Enable Engineering Mode”/“Hard Reset Transmitter” trick.
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You’re using the first generation G6 transmitter. The discussion is about the new 3rd generation Firefly