# Dexcom G5: signal loss with iphone but not receiver **URL:** \ **Category:** C/GM\ **Created:** [May 24, 2017, 7:43pm UTC](https://forum.fudiabetes.org/t/dexcom-g5-signal-loss-with-iphone-but-not-receiver/1045 "2017-05-24T19:43:12Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![Sam](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.fudiabetes.org/sam/32/10595_2.png) [@Sam](https://forum.fudiabetes.org/u/Sam)\ **Post date:** [May 24, 2017, 7:43pm UTC](https://forum.fudiabetes.org/t/dexcom-g5-signal-loss-with-iphone-but-not-receiver/1045/1 "2017-05-24T19:43:12Z")
I don’t have good results with my iPhone, it constantly drops the signal for long periods of time. I would not be comfortable counting on the Dexcom without the receiver, but I seem to have worse luck with it than some others ---
**Author:** ![Michel](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.fudiabetes.org/michel/32/387_2.png) [@Michel](https://forum.fudiabetes.org/u/Michel)\ **Post date:** [May 24, 2017, 7:52pm UTC](https://forum.fudiabetes.org/t/dexcom-g5-signal-loss-with-iphone-but-not-receiver/1045/2 "2017-05-24T19:52:52Z")
> [@Dex receiver not turning on? Charged](https://forum.fudiabetes.org/t/dex-receiver-not-turning-on-charged/1033/18): > > I don’t have good results with my iPhone, it constantly drops the signal for long periods of time. The reason is that the Dexcom iphone app is bugged, and drops BlueTooth connections every 12 hours. You need to reboot your iphone every 12 hours, and you won’t have any more dropping signal. ---
**Author:** ![ClaudnDaye](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.fudiabetes.org/claudndaye/32/5_2.png) [@ClaudnDaye](https://forum.fudiabetes.org/u/ClaudnDaye)\ **Post date:** [May 24, 2017, 7:54pm UTC](https://forum.fudiabetes.org/t/dexcom-g5-signal-loss-with-iphone-but-not-receiver/1045/3 "2017-05-24T19:54:29Z")
I have had zero problems with my iPhone so far. ---
**Author:** ![TiaG](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.fudiabetes.org/tiag/32/594_2.png) [@TiaG](https://forum.fudiabetes.org/u/TiaG)\ **Post date:** [May 24, 2017, 9:33pm UTC](https://forum.fudiabetes.org/t/dexcom-g5-signal-loss-with-iphone-but-not-receiver/1045/4 "2017-05-24T21:33:50Z")
this is probably due to the phone’s reception? We have better luck with the iPhone than the receiver…the latter has worse range and is more impeded by things like walls. ---
**Author:** ![Sam](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.fudiabetes.org/sam/32/10595_2.png) [@Sam](https://forum.fudiabetes.org/u/Sam)\ **Post date:** [May 24, 2017, 9:35pm UTC](https://forum.fudiabetes.org/t/dexcom-g5-signal-loss-with-iphone-but-not-receiver/1045/5 "2017-05-24T21:35:33Z")
That’s been the opposite of my experience with 2 different iPhones… the stars have to be aligned perfectly for mine to not lose signal, but it will backfill for missed signals once it reconnects… even sitting here with my phone in my hands and the transmitter just a few inches away on my thigh it frequently loses the signal for long periods ---
**Author:** ![ClaudnDaye](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.fudiabetes.org/claudndaye/32/5_2.png) [@ClaudnDaye](https://forum.fudiabetes.org/u/ClaudnDaye)\ **Post date:** [May 24, 2017, 9:36pm UTC](https://forum.fudiabetes.org/t/dexcom-g5-signal-loss-with-iphone-but-not-receiver/1045/6 "2017-05-24T21:36:45Z")
> [@Dex receiver not turning on? Charged](https://forum.fudiabetes.org/t/dex-receiver-not-turning-on-charged/1033/25): > > this is probably due to the phone’s reception? We have better luck with the iPhone than the receiver…the latter has worse range and is more impeded by things like walls. This is exactly what we have experienced, @TiaG! ---
**Author:** ![TiaG](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.fudiabetes.org/tiag/32/594_2.png) [@TiaG](https://forum.fudiabetes.org/u/TiaG)\ **Post date:** [May 24, 2017, 9:36pm UTC](https://forum.fudiabetes.org/t/dexcom-g5-signal-loss-with-iphone-but-not-receiver/1045/7 "2017-05-24T21:36:47Z")
well then there’s only one explanation left, the iPhone fairies have cursed you for stepping on one of their mounds… ---
**Author:** ![Michel](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.fudiabetes.org/michel/32/387_2.png) [@Michel](https://forum.fudiabetes.org/u/Michel)\ **Post date:** [May 24, 2017, 9:38pm UTC](https://forum.fudiabetes.org/t/dexcom-g5-signal-loss-with-iphone-but-not-receiver/1045/8 "2017-05-24T21:38:39Z")
> [@Dex receiver not turning on? Charged](https://forum.fudiabetes.org/t/dex-receiver-not-turning-on-charged/1033/28): > > the iPhone fairies have cursed you for stepping on one of their mounds… I thnk I might know why. @Sam, have you ever cursed into your iPhone? ---
**Author:** ![Sam](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.fudiabetes.org/sam/32/10595_2.png) [@Sam](https://forum.fudiabetes.org/u/Sam)\ **Post date:** [May 24, 2017, 9:42pm UTC](https://forum.fudiabetes.org/t/dexcom-g5-signal-loss-with-iphone-but-not-receiver/1045/9 "2017-05-24T21:42:20Z")
![](https://canada1.discourse-cdn.com/flex030/uploads/fudiabetes/original/1X/e6ad4b74181398f9668db2c9e8369a6cfa0f0bfa.jpg)[quote=“Michel, post:29, topic:1033”] have you ever cursed into your iPhone? [/quote] Certainly not Even as we speak here with the phone about 12 inches away from the transmitter, unobstructed, it has missed about the last 4 dots… (and @Michel I restarted it a couple hours ago when you mentioned that) ---
**Author:** ![ClaudnDaye](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.fudiabetes.org/claudndaye/32/5_2.png) [@ClaudnDaye](https://forum.fudiabetes.org/u/ClaudnDaye)\ **Post date:** [May 24, 2017, 9:49pm UTC](https://forum.fudiabetes.org/t/dexcom-g5-signal-loss-with-iphone-but-not-receiver/1045/10 "2017-05-24T21:49:49Z")
It’s probably pissed because your flat line isn’t as flat as usual. I’ve read that once the Dexcom mobile app becomes accustomed to receiving deviations in BG of only +/- 10 BG all day long, if they begin receiving larger deviations, they put you on time out. That could be it? ---
**Author:** ![Sam](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.fudiabetes.org/sam/32/10595_2.png) [@Sam](https://forum.fudiabetes.org/u/Sam)\ **Post date:** [May 24, 2017, 9:55pm UTC](https://forum.fudiabetes.org/t/dexcom-g5-signal-loss-with-iphone-but-not-receiver/1045/11 "2017-05-24T21:55:24Z")
I definitely have much larger deviations than that all day, every day… this is a pretty typical daily line for me… the weekly summaries I’ve posted only show the interquartial ranges (e.g… your averages throwing out the top and bottom 25% of readings) ---
**Author:** ![ClaudnDaye](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.fudiabetes.org/claudndaye/32/5_2.png) [@ClaudnDaye](https://forum.fudiabetes.org/u/ClaudnDaye)\ **Post date:** [May 24, 2017, 9:58pm UTC](https://forum.fudiabetes.org/t/dexcom-g5-signal-loss-with-iphone-but-not-receiver/1045/12 "2017-05-24T21:58:28Z")
I was just messing with you. [“Just hacking on ya”](https://www.youtube.com/watch?v=UuAOaFmS4do) (_my favorite movie of all time_) ---
**Author:** ![Michel](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.fudiabetes.org/michel/32/387_2.png) [@Michel](https://forum.fudiabetes.org/u/Michel)\ **Post date:** [May 24, 2017, 10:16pm UTC](https://forum.fudiabetes.org/t/dexcom-g5-signal-loss-with-iphone-but-not-receiver/1045/13 "2017-05-24T22:16:52Z")
Sam, how old is your sensor? From the noise, it looks like it is at least 2 weeks old? ---
**Author:** ![Sam](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.fudiabetes.org/sam/32/10595_2.png) [@Sam](https://forum.fudiabetes.org/u/Sam)\ **Post date:** [May 24, 2017, 10:18pm UTC](https://forum.fudiabetes.org/t/dexcom-g5-signal-loss-with-iphone-but-not-receiver/1045/14 "2017-05-24T22:18:15Z")
Yeah it’s like 25iish days ---
**Author:** ![Michel](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.fudiabetes.org/michel/32/387_2.png) [@Michel](https://forum.fudiabetes.org/u/Michel)\ **Post date:** [May 24, 2017, 10:21pm UTC](https://forum.fudiabetes.org/t/dexcom-g5-signal-loss-with-iphone-but-not-receiver/1045/15 "2017-05-24T22:21:10Z")
> [@Dex receiver not turning on? Charged](https://forum.fudiabetes.org/t/dex-receiver-not-turning-on-charged/1033/35): > > Yeah it’s like 25iish days OK, then that might be the reason. My understanding is that, after 10-14 days, everyone gets signal losses that get worse and worse. When we start getting the signal losses (today is it for us) we swap sensors. My experience is that, on a new sensor, you should get a pristine signal for about 10 days, with no signal drops as long as you reboot your iphone daily (we reboot it twice a day). The iphone reboot is a common problem with bluetooth, in particular when you have several bluetooth devices, but even with one. ---
**Author:** ![ClaudnDaye](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.fudiabetes.org/claudndaye/32/5_2.png) [@ClaudnDaye](https://forum.fudiabetes.org/u/ClaudnDaye)\ **Post date:** [May 24, 2017, 10:22pm UTC](https://forum.fudiabetes.org/t/dexcom-g5-signal-loss-with-iphone-but-not-receiver/1045/16 "2017-05-24T22:22:13Z")
Strange…I never reset my iPhone and I’ve never had any connection issues since we connected it to the ~~receiver~~ transmitter (sorry!) ---
**Author:** ![Sam](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.fudiabetes.org/sam/32/10595_2.png) [@Sam](https://forum.fudiabetes.org/u/Sam)\ **Post date:** [May 24, 2017, 10:23pm UTC](https://forum.fudiabetes.org/t/dexcom-g5-signal-loss-with-iphone-but-not-receiver/1045/17 "2017-05-24T22:23:23Z")
> [@Dex receiver not turning on? Charged](https://forum.fudiabetes.org/t/dex-receiver-not-turning-on-charged/1033/38): > > …I never reset my iPhone and I’ve never had any connection issues since we connected it to the receiver Are you using the G4? To my knowledge the G5 iPhone connection is completely independent of the receiver but the G4 connects the iPhone to the receiver? I have the G5 ---
**Author:** ![ClaudnDaye](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.fudiabetes.org/claudndaye/32/5_2.png) [@ClaudnDaye](https://forum.fudiabetes.org/u/ClaudnDaye)\ **Post date:** [May 24, 2017, 10:24pm UTC](https://forum.fudiabetes.org/t/dexcom-g5-signal-loss-with-iphone-but-not-receiver/1045/18 "2017-05-24T22:24:57Z")
G5 Platinum- yes, it’s paired by itself, to the transmitter. It doesn’t feed or filter through the receiver. Whenever we are calibrating the CGM, we have to manually input the BG’s into the iPhone. ---
**Author:** ![Sam](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.fudiabetes.org/sam/32/10595_2.png) [@Sam](https://forum.fudiabetes.org/u/Sam)\ **Post date:** [May 24, 2017, 10:25pm UTC](https://forum.fudiabetes.org/t/dexcom-g5-signal-loss-with-iphone-but-not-receiver/1045/19 "2017-05-24T22:25:57Z")
How are you connecting the iPhone to the receiver? My iPhone pairs via Bluetooth to the transmitter on my sensor… it has no idea the receiver exists? ---
**Author:** ![ClaudnDaye](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.fudiabetes.org/claudndaye/32/5_2.png) [@ClaudnDaye](https://forum.fudiabetes.org/u/ClaudnDaye)\ **Post date:** [May 24, 2017, 10:27pm UTC](https://forum.fudiabetes.org/t/dexcom-g5-signal-loss-with-iphone-but-not-receiver/1045/20 "2017-05-24T22:27:15Z")
Same as you. What’s the question about? I thought we were only talking about resetting of the iPhone? I don’t have to reset / turn mine off/on and I don’t lose connection to the data. [Next page](https://forum.fudiabetes.org/t/dexcom-g5-signal-loss-with-iphone-but-not-receiver/1045.md?page=2)