Issues connecting to cellular data on iPhone After Update

Today I updated my iPhone form iOS 16.0 to 17.4. When I opened my phone I found that I was no longer connected to my cellular data. When my wifi is off and my cellular is on, I get popups saying “Cellular Data is Turned Off.” I also keep getting popups to update my carrier settings but when I click update it shows me the popup a second time. Then, it appears again a few minutes later. Something to note is that I am currently on roaming since I am out of my home country.


So far I’ve tried:

  1. restarting my phone
  2. resetting network settings
  3. deleting any vpns in settings
  4. updating my carrier in settings (this did not appear)
  5. manually setting my provider since i’m on roaming
  6. contacting tmobile support (they said ask apple)


Any idea what I could do to fix this issue? Haven’t found anyone on here with the same problem.


[Re-Titled by Moderator]

Posted on Mar 5, 2024 5:21 PM

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Posted on Mar 8, 2024 3:36 PM

Today I found my network just stopped working. No message, no warning - just no cellular network. Come on Apple - how can an IOS update lose focus of the very basic needs of a mobile phone…. No excuse. Please sort this out asap. It had a massive impact on my work day! 🤯

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128 replies

Mar 15, 2024 3:23 PM in response to lukas1661

For those stumbling upon this topic, yes, can confirm that this is still an issue as of March 15th, 2024.


Had the issue on iOS 16.2.1, tried updating to iOS 17.4, and it is still an issue.


Going to try the Factory Reset method and maybe going back to and reinstalling an older iOS 16 version if possible, and will pray that works.

Mar 25, 2024 10:03 AM in response to lukas1661

I had this issue on a brand new Iphone 14 pro max since updating to ios 17.4. Spoke with apple, gave them a lot of diagnostics and they said there is nothing wrong with the phone and to check with the carrier. Spoke with the carrier multiple times and they said to discuss with apple.


I’ve waited for the ios 17.4.1 update but still the same issue. I had signal but the mobile data would’t work and the hotspot and mobile data settings just dissapeared.


Tried absolutely everything from this thread, nothing would work.


Today I finaly did a backup and restored my phone from a mac. Now everythinf works just fine on 17.4.1. Apparently it is a bug with the 17.4 ios.


If you still have the same issue, just go ahead and restore your phone and you should be good.

Mar 16, 2024 5:53 AM in response to lukas1661

I have iPhone 13 Pro Max. It was great, when it was on 17.3.1. Right after update to 17.4 I have big issues with cellular - it just don’t work (right after every reboot of the phone I have about 2 minutes when it would work, after that if you want to continue to receive calls or use cellular internet, you need to reboot again).


I tried to reload from pc backup and to restore phone completely - nothing helped.


After Apple Store customer service checks, they made a conclusion, that there is a hardware problem with cellular. They said, that it could be fixed only replacing motherboard, which costs nearly 500$ in my location. To my question, why the problem appeared exactly after the update and there are a lot of people like me, they could not answer anything clearly. I could apply for trade-in program, but if my phone have only this problem they will give me 0$ discount, so I decide not to buy another iPhone :)


I really hope they will fix this in 17.4.1

Mar 19, 2024 3:51 PM in response to lukas1661

This absolutely happened to me too. 13 mini, updated to iOS17.4 killed my cellular with verizon. I was on the phone with them for almost 2 hours, they finally sent me a replacement mini- basically telling me that the new update some how fried my ability to accept eSim. We tried everything, looking at this thread- I feel fortunate that they were willing to send me a replacement phone (considering I don't have phone insurance). I received my phone today and low and behold, I have to update it to the newest iOS before I can set it up... crossing my fingers it actually works. This is a serious iOS problem- I can't believe this has been going on since at least December.

Apr 2, 2024 5:01 PM in response to lukas1661

2-3 trillions (whatever) dollars of company and because of their awful software update, I have to spend ridiculous amount of time and personally cover the damages that they have given to my phone&sim card. They literally destroyed the smart phone's top 1 reason of usage by their update. Shame. At least I saw, today's Apple has no advantages (even has disadvantages) over other phones in terms of stability.

Issues connecting to cellular data on iPhone After Update

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