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250mb additional data used in 5 minutes on background apps


On an IPhone 5S, I ran out of data so agreed to 250 extra mbs for an extra $5. Without opening any apps, the 250mbs was used up in 5 minutes. How can I figure out what used up that much data that quickly? Feels like a glitch - how to I get my data reset and my money back if it is? See image showing how quickly the data disappeared.

8 replies

Badge +4
Hi Peter, Go to: Settings > Cellular/Mobile Data and scroll down to switch off apps that are using data. On the same page, scroll down to the very bottom to disable Wi-Fi Assist. This feature automatically uses cellular data when Wi-Fi signals become weak or are out of range.
Userlevel 7
iPhones seem to be data hogs. Also, 250 MB is a very small amount of data in this day and age - before LTE came out it might have been enough but higher resolution screens + videos, social media apps, and online games tend to eat it faster nowadays. If this is insufficient for your needs you might also want to look into changing your plan.
I'm having the same problem, apparently my phone has used 88mb of data while I was sleeping, with only one app allowed to use data. Its record use is 5.5mb over a year so I doubt it's the culprit. Wifi assist is disabled, so what's the deal? My historic use has had me well below my data cap, so this is unusual. Not the least that it's using data while my phone is sleeping (as am I), any suggestions??
Userlevel 4
kinda makes me wonder though, is there really a point of a plan that offers 100mb of data?
Userlevel 7
Badge +4
Jay Why wrote:

kinda makes me wonder though, is there really a point of a plan that offers 100mb of data?

Better than nothing I suppose. It really is nothing. Good for messaging and a fe dozen Web pages. The average pag per mobile website is now well over 2MB with no signs o slowing down.
Userlevel 7
Badge +4
Geena have you looked to see exactly what app or the system is taking up the data? It should show all data use. There shouldn't be a Bermuda triangle of missing data.
Goran wrote:

Geena have you looked to see exactly what app or the system is taking up the data? It should show...

I only have WhatsApp with access to data (because of random drops from wifi experienced in the past). I received no messages, so it can't be that. If it's System Services (the only thing left), can I disable its access? I reset my stats to see for sure, but as whatever this mysterious access is has put me at 90% of my cap I'm nervous, I've never been this close halfway through the billing period before
Badge +4
Goran wrote:

Geena have you looked to see exactly what app or the system is taking up the data? It should show...

Wi-Fi Assist is enabled by default. Disable Wi-Fi Assist. It's located at the very bottom of the apps list that access data. If for whatever reason your iPhone loses a Wi-Fi signal, (e.g. drops Wi-Fi while charging or while in sleep mode), Wi-Fi Assist will activate and automatically switch to a cellular data connection. This might explain the mysterious data leakage/usage. [b]Wi-Fi Assist https://support.apple.com/en-ca/HT205296

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