IOS 8 High Cellular Data Usage

Same issue I am facing here. This is frustrating I have never exceed 1.5GB in a month. After only week of owning the iPhone 6 it has sucked up more than 2.5GB. My Data cycle restarted today and already 800MB drained from sitting on my desk at work. AT&T offers no help and says that most of the data is being uses at 5-6AM, for goods sake no one's awake at that time. They offer no help and is only suggesting stupid options that I already had off. The Phone is always connected to WiFi yet still I face issues. I am very disappointed miss my Android. Apple Needs to FIX ASAP.

Los saludo desde México.

Estoy teniendo el mismo problema en mi iPhone 5S. Desde septiembre mis datos se consumen excesivamente, en mi caso los días 10 de cada mes es cuando el móvil consume mis 3 GB de datos.

Apple debe ofrecernos una solución rápido y eficazmente.

What does 'Documents & Synch' represent in terms of what apps etc are using it? I have this problem on my wife's iPhone5 which seems to be gobbling data with very little use. My iPhone 6 which has the same settings and IOS 8.1.2 seems to be relatively ok in terms of data usage although a little higher than my old iPhone 5. If I want to do a factory reset on my wife's iPhone5 is there any way to back up her contacts outside of iTunes?

Documents & Synch is the cellular data usage for synchronizing everything turned "on" under Settings/ICloud to the cloud, thus making it available to any device you have that is also hooked up to the same ICloud account.

If your wife's phone is connected to the Icloud, her contacts list is also stored on the cloud. Resetting the phone shouldn't affect the icloud copy, and reconnecting the phone to the cloud will result in a copy being downloaded to the phone's contacts list data store.

She can verify that her contacts are on the cloud by logging on at www.icloud.com and opening the contacts list found there.

I contacted Apple Support via chat and the support person had me reset my phone completely. I set it up as a new device and logged into iCloud. I was initially on WiFi for all the setup then turned off WiFi and the Documents & Sync went to 2.5MB within 10 min. The support person said this must be a hardware problem since software problems are fixed by doing a reset, so I have an appointment for the Genius bar for Saturday. Where I don't think it is a hardware problem I think the only way Apple will be able to acknowledge this problem is if enough people actually contact support about it. It might be a pain to restore your device and go through the support process however if all of us actually do so Apple will take the problem more seriously and figure out a fix for it.

Here are the steps I have taken and over 24hrs later it seems to have resolved the massive data drain.

- Complete reset of iPhone 6 Plus

- Log out of iCloud on ALL devices.

- Log in to iCloud on iPhone

- Log in to iCloud on all other devices 1 by 1.

- I did this step to see if there was one culprit. Turned out that none of them were and so far so good!

Hope this helps others. Apple is still looking into my iCloud account but I'm hoping this resolved the issue.

I have switched off most settings (except email & safari) on my wife's phone following the suggestions in this thread. The only thing connected to the iCloud is Find My Phone. I have also switched email to manual fetch mode. However, even though it was connected to wifi, I noticed last night that after 2-3 hours it still used a few MB of data according to the phone. The next step is a complete reset but I need to be sure not to loose her contacts.

I had my phone replaced under warranty today at an Apple store set it up as a new device came home disabled all of the usual Data using settings and the issue was still there. I contacted Apple Support again and after 2 hours with them they are finally escalating up to Engineering so I have a call back scheduled. I will update after that.

Also having this problem on an iPad Mini 2 using AT&T cellular data. For me, the mail app has eaten most of the cellular data (far more than it ever has). When I try to get mail, it often appears like it's downloading a lot of email though little will show up in inbox. I suspect it's set up to sync all folders unlike before where opening a folder like junk or trash would then sync new junk or new trash only then. I've tried most of the tips shared in this thread but nothing works. Getting just a few emails today while using cellular data ate about 20MB of data (nothing in them warranting so much data consumption).

I've had to resort to turning off cellular and/or avoiding the use of mail when using cellular (which mostly defeats the purpose of this mobile device for me). Given the variety of iDevices and 4G service providers, the one common thread is iOS 8. My iPad Mini didn't eat 4G data like this before iOS 8. The hardware didn't change.

For the first time ever, I'm about to run into the data limit barely a month after subscribing to the 3-month data plan. Apple needs to fix the problem though I'm sure their cellular service partners appreciate this "bug" very much! My post is on page 9 of this thread. It doesn't appear to be an isolated problem.

Same problem here, iPhone 6 on iOS 8.1.1, used up 1GB of data which is not even the total for all the apps under Settings > Cellular. The total of all the apps and system services should only be a bit under 200 MB yet the total is mysteriously showing over 800 MB of data used.

I had the same problem last Thursday. I was at working, I got my new Iphone 6 plus over a month. I rarely uses my data, most of the time, I am on WiFi at home or in the office. I first got a message from At&T saying that 75% of my data had been used. 20 minutes later I got a message saying my data had been used 100% and I got 500 MB more which had usage of 180 MB. I was very busy at work and I turn off data completely.

Later I called ATT and the rep person could not understand how my data had been used, he couldn't give me an answer why this had happen, he said he will give me credit for the overuse. I told him that wouldn't fix the problem, I hang up and I called again and this time I got someone who could help me.

I've called ATT rep, call the Apple rep, and the person from Apple walked me through I had to back up my phone on my computer, with I tunes and re-install the I-phone and restore the data. So far things seems to be Ok.

But my question still on, and nobody from ATT or Apple could answer me. I do not know if someone was stealing my data usage...Is it possible? Or is it a glitch on the Iphone?

On the outside chance that this has anything to do with it: would people start including what type of wi-fi security they are using? i.e. WEP, WPA, WPA2, etc? I ask because I've seen some serious slowness with my iPhone at home, turns out it may have something to do with our router being set to use WEP, apparently if I switch to WPA or WPA2 that should resolve. But in the meantime...maybe if things get too slow, the phone is switching to cellular? Any chance we are all using a WEP wi-fi network?

As for my issue: I've had my iPhone 6 plus for only 2 weeks and was stunned to click on Settings>Cellular today and see "Cellular Data Usage" set at 9 GB - and I rarely use my phone for anything but texting away from my home network. (One possibility: I started an iCloud restore from backup in the Apple store, but it didn't appear to complete until I was at home on my wi-fi network, so I believe it was not trying to download via Cellular. It was a backup from a pretty full 16 GB iPhone.)

BUT...the good news is that when I logged into my Verizon account it only shows 200 MB used, all small amounts at 6 hour intervals. I have received no warnings from Verizon as many others have warning the system is going over, so I'm going to assume the 200 MB value, not 9GB, is correct. (Settings>Cellular>System Services claims 400 MB used.)

That said, I don't want to use up even 200 MB of data doing backups every 6 hours unless I know more about how it is being done. For example, under "Settings-> Cellular Data -> Use Cellular Data For:" I can see a list of my apps with a data size, typically in MB, underneath. Is that the size of the App? with/without the associated data (example: photos apps plus photos) or is it just the cellular data usage associated with that app this month?

This is completely absurd. I was just awakened by a text from AT&T saying that I had used 30% of my monthly data. I had been asleep for 8 hours in my home with a wifi connection. Called Apple support and they had me make a few adjustments, which I doubt will do anything. I've had this phone for one day now, and I'm thinking of returning. This was the fourth time that I had to call Apple support for this phone due to various glitches.

I have wondered if there is a problem with the software on the iPhone that logs the data usage. I have checked the Vodafone account for my wife's phone for the day the phone said that 200MB of data was suddenly used. Vodafone is showing that as 2MB!! In addition my wife's phone seems to have reset the cellular data statistics two nights ago. I had checked the previous day and the current cumulative usage for the month is now equivalent to maybe two days usage.

estmapper,

The figures you see under settings/cellular for individual applications is the sum of the upload and download data since the last time you reset the statistics on the phone. The amount of memory the apps take up is under Settings/General/usage/manage storage