iPhone X Excessive Data Usage

I bought it about a month ago.

Same as you I have turned off everything I know. Everything using wifi and mobile data on the background, iCloud and iTunes, apps, even the one in Privacy>Analytics>Share iPhone Analytics. I only downloaded Facebook and WeChat into my iPX. I have no problem with my iP4 before. Now, a 1GB of data lasts for only 3hrs. 😕😢

I too have the same issue. I tried 3 geniuses in 2 stores, called multiple times, reset the phone in all kinds of ways, and changed my apple ID to a new one after a factory reset. None of this works. I honestly thought that new ID would do it but nope. "Apple ID Services" takes up cellular data even when wifi is ON and the phone is not doing anything. Say goodbye to 300mb of data while you sleep with all apps turned off and with wifi on. The only workaround is to have the cellular data turned off at all times. This has been happening to me for about 3 months or since the release of iOS 11. Prior to the forced update, I never had this issue. Even though I have 0 control over this (meaning, I can't turn off "Apple ID Services" like I can with apps) and paying for data I am not using, Apple obviously has bigger problems and won't even let me downgrade to iOS 10 which actually works.

First visit had me reset the phone using iTunes so that a brand new software can be installed. Then I was told to go home and observe. Hoping that the second visit won't be an utter waste of time, I had a new genius try to disable wifi assist, background app refresh, location services, iphone analytics, and icloud - only to find that they had been already disabled by me. Their next suggestion was to send my phone in for an inspection but I was also told that option rarely results in a concrete solution. Eventually, I got a new phone as the last resort. Unfortunately, that did nothing. My last attempt to fix this was to factory reset again and use a completely different apple ID. That also did not work. I am so vexed at the fact that I have to manually toggle cellular data that I switched my plan to unlimited even though there is no need. Someone cry with me.

One thing I've noticed since upgrading to iOS11 are Photos taking up a lot of data. Since photos and videos are no longer saved locally but on the iCloud, the device was uploading them all the time. The went for videos. So in either the photo or cellular settings, I turned off photos from using cellular data and only WiFi. That has seemed to help a great deal. Like you, the system settings still eat up data for some reason even though much of my time is spent on WiFi. Another thing I've noticed, and maybe it's always been this way and since I'm watching my data I notice it now, but iMessage is eating up a lot of data when sending pics or videos. Maybe because of the iPhone X's better camera (than my SE) and the photos are in higher resolution, more data is used.

same here bud. always had cellular on and only used .5gb for whole month. I've used that in 2 days with the X. no change in habits. This is definitely an apple issue. not only did i dump a grand for a phone, but now i cant use it as it is intended. HATE APPLE NOW

I just realized I have the same issue. Got the X three weeks ago and I’m burning through cell data. Normally use .1 per month because I’m always on WiFi. Have used 1.8 in three weeks already, and at times I’m connected to WiFi AND in the middle of the night: 12AM, 3AM, 6AM, 9AM, 12PM, etc., day after day. WIFI assist has been off.

Hi

Go to settings down to apps disable using cellular data on all the apps you don't need to use cellular data.

Then they will just work on wifi.

Go to i books download ios 11 user guide & iPhone X guide both are free.

Cheers

Brian 🇬-1F1E7;

The huge usage was YouTube and I shut it. Still no excuse for cell over WiFi, especially when the phone isn’t in use in the middle of the night. I’ve reset the usage and will monitor the situation. Have to call AT&T tomorrow, see what they know. Closed today. My nephew works at the Apple Genius Bar and this is all news to him.

I saw your post and checked my settings to see if I had an issue there as I'm finding cellular use higher than normal for me, regardless of all else I've done although those steps helped too, just not to the degree I'm used to. I just went into the YouTube app itself and turned off my data usage for it as well as limiting high data usage unless on WiFi. Going to be doing this for a few other apps on both of my phones. I had done this under cellular settings but as is fairly common for me, I got lax after updates to not only the phones but after updates to the apps as well. Many apps will default back to cellular after they update, so this is a nice and necessary reminder. Thank you for adding this to the post ~

Yep, same here. Spent 2 weeks with apple investigating this and their final response is that it is not unusual behavior, and that this is the way the phone was designed to work. Told them my 6s never did this, and same response. Nothing they can do because it was designed to use OBCENE amount of cell data. So now I have a 1000.00 cell phone that I cannot use for cellular.

Hello- I am having the same issue. I have had my iPhone X for 18 days. My carrier swapped out the phone and gave me a new one. I got the X due to my 6 Plus battery no longer sustaining a charge beyond 20 minutes. Now I am almost over all my data from my carrier after 17 days. I am partnering with Apple regarding this issue. However, if this continues I may seek additional recourse as I had to replace my iPhone due to Apple messing up the batteries for us older iPhone users. Now I am the proud owner of a $1,000 paper weight as I cannot turn on the data without incurring additional charges and fees.

Feel your pain Jaye2802, and I do think this is an apple issue not carrier. But who knows. Just like the battery mess-up that apple finally admitted to, maybe eventually they will admit they did something to the cell data usage too. I wouldn't hold your breath though. Good luck.

Had the same problem with my new X, as told by my other posts here. Solved by going to Cellular screen and turning off WiFi Assist, Data Roaming, iCloud Drive. After that, reset your stats and monitor which apps are hogging data and switch them off too if you don’t need them while out and about.

Thats not the issue. Most people complaining already have all of that turned off. As do I. As an example, a simple safari search used 50MB of cell data for just 2 minutes. This is not normal. Something is wrong. Don't count on apple to fix this.