IPhone :: Wifi Available. Will It Use Cellular Data?
Aug 24, 2010
So I got my first ever iPhone and it's the iPhone 4. I have the 200mb plan and I plan to switch cellular data off most of the time if wifi is available to avoid overage. Thing is, with cellular data off, I can't do certain things (ex. Receive picture messages via the Messages app) unless I turn on cellular data. So as long as wifi is available, will my phone still use up cellular data even though it can get data off the wifi? Thanks.
I apologize if I failed to look up any threads on a similar subject. I did a quck search but they weren't really what I was looking for.
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May 4, 2012
AT&T and iPhone data use charges - WiFi and cellular link options Many people have complained about unusual data usage charges on their AT&T iPhone bills -- often 10s of megabytes in one transaction, posted in the middle of the night. Here are a couple of updates based on the AT&T support portal: WiFi vs cellular link: Connecting to a local WiFi hotspot and turning off your cellular data connection will block cellular data transmission and related charges. (Except for SMS messages, which are very small.) There are some gotchas, however: (a) If your iPhone goes 'to sleep' (the screen goes black), it will revert to the cellular data link, unless it is plugged into a charger. (b) Even if your iPhone is plugged into a charger, it will revert to a cellular data connection if the WiFi link drops, e.g. due to a momentary glitch with your internet provider or electric power supply, so.... (c) The only way to completely ensure that your iPhone will not revert to a cellular data connection is to turn it completely off. You (obviously) will not be able to receive calls, however.
Large data transactions in the middle of the night: Unusually large 'chunks' of data that are apparently sent around midnight are a related issue. You may think that you could avoid these mystery charges by making sure you have a WiFi connection running at night. A number of 'czars' on AT&T's site stated, however, that this is are simply an artifact of AT&T's billing system, which "aggregates" transactions that occur throughout the day into one summary charge, which is posted in the middle of the night. If this is accurate, the data connection(s) you use throughout the day will determine how large this 'summary' transaction will be.
Note: Our bill does not appear to square with AT&T's explanation. For example:
39 04/06/2012 09:36PM phone Data Transfer 7 KB 0.0040 04/06/2012 10:35PM phone Data Transfer 7 KB 0.0041 04/06/2012 10:41PM phone Data Transfer 369,759 KB 30.00
If all of the data from 6 April was 'rolled up' into the massive 369.8 megabyte transaction at 10:41pm, why are there two small transactions at 9:36pm and 10:35? We installed Onavo to try to get to the bottom of this;; I will post the results at the end of the current billing cycle.
Info:
iPhone 4S, iOS 5, iPhone and AT&T unusual data usage
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Apr 14, 2012
my iphone 4 will not connect to wifi while i have the cellular data enabled
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iPhone 4, iOS 5.1
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Apr 21, 2012
How will I get to know that my phone is currently using wifi network or my mobile network while using data services? Can i install whatsapp without either purchasing it or jailbreaking my iphone?
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iPhone 4S, iOS 5.1
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May 20, 2012
i just purchased my iphone, and i found my cellular usage is increasing while i was on wifi the entire time? i thought i'm completely off the cellular network while connected to wifi, but this doesn't seem to be the case.
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Apr 19, 2012
My wife is on a school trip to the US. Meanwhile, I am at home in Canada. I am texting her, but I found it odd she never replies and vice versa. So, she discovered that her iPhone (latest iOS 5 release) keeps trying to send the message as an iMessage. It is not reverting to SMS after a given time, as it should and as I have seen it do before. I have tried it now also and my wife only receives my messages when she has a wifi connection (she does not have data roaming enabled). It seems like my iPhone too continously tries to send the message as an iMessage and it does not switch to SMS after a certain timeout time. The message that the iPhone continously tries to send as an iMessage never fails, however the status does not change until the next time my wife is in wifi coverage and the message is delivered.
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iPhone 4, iOS 5.1
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Nov 3, 2011
Recently the data on my 9700 will not switch from WiFi to cellular. If it's attached to a WiFi network, everything works fine. However when I leave that network and the BB needs to use EDGE/3G it does nothing. It will not even attempt to transmit or receive unless I do a battery pull. If I leave WiFi off, everything works fine. It is now running OS v6.0.0.668 by AT&T. I just updated to this OS in hopes that it would fix the issue, but no luck.
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Mar 22, 2015
I know this seems backwards but I have a very good reason. my cellular data is unlimited and my jetpack Mobil wifi from another service is not. I keep both on while driving to enable consistent Internet for Internet radio for instance.
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Jan 16, 2015
I am using Nexus5 (Android 5.1). Actually, my network provider has charged me for cellular data usage which I never did. In-fact, I haven't subscribed to any data pack and was charged heavily. I always use internet through WiFi.
My data usage widget is displaying 0B data usage, but my network operator is insisting that the data has been used by the device.
I want to understand if this issue is really due to my device.I see different cellular network icons on my device :-
- Exclamation mark in cellular network when WiFi is disabled (I never enable cellular data)
- R sign in cellular network (cellular data is disabled and i am not in roaming)
- No R or exclamation sign (both WiFi and cellular usage is disabled)
I am not able to understand,Is my cellular data usage is really due to my device settings or is due to some issue by service provider.
Is it that the device is indeed using cellular data despite of the fact that cellular data option is disabled and it never shows this usage in data usage widget.
I observed that when I use Wi-Fi, then exclamation sign from cellular network is removed, does that mean that the cellular data is also used and that's why my service provider has charged me?
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Aug 29, 2014
I Cannot send pictures or receive them via iMessage cella data ,data roaming and 3G all switched on
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iPhone 4S
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Jun 20, 2010
I bought an iPhone 3GS off a guy on craigslist and it works great, no complaints. But every few minutes or so I get the alert saying that I "Cannot activate cellular data network - You are not subscribed to a cellular data service", and it's really annoying because it lights up my iPhone all the time and kills my battery. It's also really annoying - it comes up whenever I'm typing a message or playing a game; literally when I do ANYTHING on my phone. I do not have a data plan, but I have used 'unlockit.co.nz' to install a Fake APN to my iPhone to block data. Rogers has also given me a data block. This has been going on ever since I bought the phone, I thought installing a Fake APN would stop it but I guess not. I can't really restore since I have a lot of stuff on this iPhone already.. but if that's the only option then I will be forced to. I used to have an unlocked Fido 3G (about 2 months ago) without data and it never gave me this alert, do you think it has something to do with my 3GS being locked to Rogers?
This phone is a jailbroken iPhone 3GS (model MC143C) running version 3.1.3 (7E18) and locked to the "Rogers 5.0" network. If it helps the modem firmware is 05.12.01.if there are no real solutions, I still have 2 months left on my warranty. Would Apple fix it or give me a new one if I un-jailbreak it?
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Jun 5, 2012
Still struggling to get to grips with my new iPhone 4S....Reading the User Guide it says "to turn Cellular Data off go to Settings/General/Network then turn Cellular Data off".The only problem with my phone is that "Cellular Data" does not appear in the Network screen. However "Mobile Data" does.is it the the same thing?For cost reasons I would like to be in control of when I use the internet and already I have inadvertantly incurred charges without being aware that I had gone on to the internet.Will selecting "Mobile Data" to "OFF" solve my problem.
Info:
iPhone 3GS, iOS 4
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Sep 5, 2010
what does this mean? i just got my iPhone 4 today and i was on the road (apple store is an hour drive from where i live) and i was texing my friends, had:
celluar data: OFF
enable 3g: OFF
data roaming: OFF
and i kept getting this response "turn on cellular data or use Wi-FI to access data" anyone know how to fix this? am i suppose to leave Cellular data on? i turned it off because i thought it would be wasting data. (got 200MB plan)
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May 7, 2012
How do i change my iphone 3GS from mobile data to cellular data
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iPhone 3GS, iOS 5.0.1
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May 12, 2012
what difference between cellular data and mobile data in 4S?
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iPhone 4S, iOS 5.1
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Jun 21, 2010
For an instant link on how to fix this issue and preserve your information click the following link:
URL...
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Mar 29, 2012
when i turned OFF the cellular data network, i can't receive/sent message/make a calls...i do same on my iP4 before,but it doesn't have any problem like this..
Info:
HP G42, iOS 4, Intel x64
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Apr 21, 2012
My partner is in the US for the week. She has turned off Cellular Data in Settings → General → Network to avoid exorbitant data costs yet when I reply to her SMS messages my messages are sent as iMessages, which she can't now receive. She's also turned off iMessage in Settings → Messages but so far my messages still default to iMessages instead of SMS. She's having this problem with other people as well, no doubt because their iPhones keep trying to send her iMesssages.
I know that I can turn of iMessage on my phone and that lets me successfully send her SMSs but I wonder if there's something she can do at her end to make SMS the default for everyone who is trying to reply to her. I've also tried Settings → General → Reset Network Settings but it hasn't solved the problem.
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iPhone 4S, iOS 5.1
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Apr 25, 2012
How can I get cellular data network on 3gs phone?
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iPhone 3GS, iOS 4.2
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May 12, 2012
my iPhone 4 has been lost/stolen and the phone is still ringing, but i always turn my cellular data off, is there any way to turn it back on without touching my iPhone so i can use 'findiphone'
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Sep 8, 2014
I have an iPhone 4 on 7.1.2. Ever since the beginning of this week, my cellular data was going off & on, until someday, it won't turn back on.
I turn on my Cellular Data, but there's no 3G status icon nor can I connect to anything. There's no error messages also.
I'm still under my data limit. I also did everything in this: iPhone: Troubleshooting a cellular data connection.
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iPhone 4, iOS 7.1.2
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Jun 3, 2014
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iPhone 5, iOS 7.1.1
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Mar 13, 2012
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Mar 22, 2012
My dad just bought an iPhone 4. If he turns off the cellular data option, can he still recieve iMessages from me sent from my iPad 2 that uses wifi? If he can recieve iMessages with cellular data turned off, is there any charge or data usage required?
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iPhone 4, iOS 5
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Apr 12, 2012
how to activate cellular data network on iphone 4s.
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iPhone 4S, iOS 5.0.1
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Apr 30, 2012
I am unable to access my cellular network on my iPhone 4 ...
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May 19, 2012
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May 23, 2012
I have some random iPhone application transferring tons of data from my phone, even when the phone is asleep. It appears to happen once per day, around 5-6pm and for example last night it 'sent' 75mb of data out. At a 200mb cap, this is pretty scary. How can I find out which app is doing this? AT&T was useless and suggested Apple was doing this. Even though all of our iphone updates are manual, and that would be a 'receive' not a send. It's an iPhone 4 running the latest operating system.
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iPhone 4, iOS 5.1.1
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May 27, 2012
I used the internet normally, untik such a time that i decided to chance my network from zain to mobily (networks from KSA), however, i cannot chage the APN since it is missing. im rinning ai IOS 5.1.1 iphone 4S. how could i bring back the cellular data network? as far as i know i have that before (IOS 5) and im not sure if the update took it off or some other reason.
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iPad, iOS 5.1.1
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May 31, 2012
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iPhone 4S, iOS 5.1.1
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Jun 4, 2012
I have the iphone 4s and totally new to the whole thing..i want to download Whatsap Messenger using my Cellular Data..it keeps on asking for a 3 digit area code..cellphones doesnt have area code only landlines..which code should i put in there?
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iPhone 4S, Data cellular data - applications
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