Issues connecting to cellular data on iPhone After Update

Replying to my previous comment: Went to the Apple Store and had them go over the phone turns out my cellular antennas were all fried. Had to have them replaced. $449 bill free of charge because it was still under warranty. All issues are fixed.

The problem is AT&T. They have "towers down" all over the country...but they are refusing to "announce" it. I have been having problem in 2 locations - Los Angeles metro and Austin, TX metro. Have had mobile service with AT&T working fine in both locations for 15+ years...now after 20 customer care calls and 5 escalations to the "highest highest engineering support" they still have not been able to fix the problem and they verbally acknowledge the following 2 things: 1) AT&T network software does not work with iOS 17.4, and 2) AT&T is experiencing massive tower "outages" in large metro areas, including LA, Dallas, Houston, Austin, etc.

eSim connectivity is the responsibility of the wireless service carrier, not the phone provider. Wireless providers have had ongoing issues with adaptation for eSims. It is getting better but is not perfect.

I have the opposite situation cellular data is consumed enormously almost 8500 MB in almost an hour using only what’s app and face book and I don’t know how or why and this happened just after updated to 17.4 what can I do?

I also noticed system services almost consumed most of the data how can I turn it off?

Im having the weirdest issue, whenever LTE or 5G is on I have no cellular data. However if I dial to someone the data automatically switches to 3G and then I do have data. So what I’m doing is just dialing a number with an automated menu and stay there until booted off, only way for me to have internet on my phone at the moment . I’ll stop by the Apple Store tomorrow, so annoying.

So I lost all cellular connection after the 17.4 update and the diagnostics said that there was a hw issue.

Anyway, the insides of my phone were all replaced. They repaired it pretty fast 2 days, but it was still pretty disruptive for my work and leisure to have a replacement phone and then set up bank app, cards in Apple pay, etc.

Glad the issue got sorted and hopefully it won't happen again after the warranty.

Does anybody have problem with LTE cellular data signal on IOS 17.4? 3G data plan works fine, but 4G doesn’t. 4G signal is full, but every 30 minutes it goes all the way down and comes back few seconds after. I use Iphone 15 Pro Max.

With regard to not being able to make, or receive calls- double check your ‘Focus’ and ‘Communication Limit’ settings.

Even if you don’t use either, just check to make sure the settings have not been accidentally turned on for whatever reason.

Me too having some network issues after ios 17.4 , my phone is no more latching on 5G network even though i Am in 5G network coverage area. The area is same, before updating, I was having my iPhone registered on 5G but after it, I hardly see 5G on my phone. I have reset network setting, checked 5G setting in cellular data so far.

I experienced this problem immediately after updating to 17.4, no resolution from carrier or Apple.

I’m in the UK and use two SIMs in my phone: physical Lebara and EE eSIM. The Lebara SIM had no problems, but EE was affected as described across the multitude of threads on this issue.

I noticed my EE carrier settings version was quite old (v47 IIRC), with Lebara using the Vodafone v58 released recently. Nothing I did would cause the EE carrier settings to update…until I replaced the EE eSIM with a physical SIM.

As soon as I switched to the new EE SIM, my carrier settings also updated to EE v58 and the problem was resolved. Converted the EE SIM to eSIM using the inbuilt iOS prompt, all issues remain resolved.

So…for me, this was stale carrier settings that would not update on the relevant EE eSIM.

You can try this:

Press "Volume UP", then "Volume DOWN", then hold the "Power" button until you see the Apple logo on the screen. I have also sometimes lost settings, but after rebooting in this way, they reappeared.

OK battery is even more of a joke since update.

just looking at google to try and get answers and dropped from 71% to 63% in the 15/20mins of google search. Same phone last week lasted ages on battery

So, I ended up ignoring phone support with 3mobile and went to store.

I went to large shopping complex so I could go to 3mobile and if still issue there was an Apple Store.

went to 3 and they changed the sim and within seconds everything was back on and up and running.

cost nothing as she said the sim I had had been corrupted somehow…… she would not commit to saying due to the latest update.

however with new SIM in I am now also showing 5g nearly everywhere.

so was it a software IOS update that stopped my mobile service or a 5g role out issue Saturday night.

phone back on and have signal stronger than ever so after 30hrd of zero that was my answer.

So just recently talked to support and he told me at Mobile Data Options > Data Mode > Change into “Allow more data on 5G” and seems to work for me for the time being.

Also asked him afterwards if they changed this option to “Standard” after the iOS 17.4 update and the response was a yes.

Im personally a bit skeptical about the response, but who knows.

I have IOS 17.4.1. Mobile data works but not always. I use eSIM of the mobile network Spusu which works on the EE’s network. I have issues with WiFi calling. I turn it on, it works for a few days and then turns off BY ITSELF. I spoke with Apple and my carrier, they just blame each other, but I’m sure it’s Apple’s fault in IOS 17.4 Quite often when I try to call from a location with an excellent reception, calls just get failed. Only restarting my phone helps, but then it comes back after some time.