Cellular network off after 17.4.1 update

We support several Private LTE (Band 48) networks and with new iPad 6 Mini’s deployed with factory installed 17.4 iOS, devices connect to the private cellular network, network system admin can see that devices are connected successfully, though, any App attempting to access the internet, receives a “Not Connected to Internet” error. Updating an iPhone 13 Pro from 16.6 code (working on network) to 17.4.1 code creates the connectivity issues. AT&T connectivity works without issues, just Private LTE (Band 48) on this end.

i believe the latest iOS releases are blocking certain frequencies and network IDs being exchanged with your cellular service provider. That is why, iPhone keeps searching for cellular service.

I fixed this issue by getting the latest physical SIM from my cellular service provider and inserting it in my iPhone. If your iPhone supports eSIM, delete it and revert back to latest physical SIM.

hope this helps!

You could try resetting network settings. It seems to have fixed my phone. Didn't fixed my work iphone however

Select Settings

Select General

Select Transfer or reset iPhone

Select Reset, then Reset Network Settings

Enter your Password/Passcode and select Reset Settings

Verizon iphone 13 Max Pro, same issue, lost service after update. I had a heck of time trying to get it back working, I tried everything, even erasing and restoring the phone and it still had the "SOS". My solution was to completely remove sim card and use the internal e-sim card. You'll need to call the carrier for them to switch it to the built in internal e-sim card. Hope this helps.

I tried updating carrier settings which helped people for the last time this happened after an update, but it didn’t do anything. Factory reset sounds annoying. Has Apple said anything about fixing the problem??

I was only able to fix this issue by calling ATT and having them send me an eSIM to replace the physical sim I had.

I also tried everything else under the sun first including wiping the phone and resetting the network settings, but none of that worked.

I am also facing the issue in my I phone.. before this update I was facing contact search related issue but after this upgrade that got fixed but new big problem occurred. I can not use my mobile network.. no internet even calling also got ruined.. please send another update as soon as possible

After the update I couldn’t send email or get into the App Store or signin to this site. What I found was if I go to settings/ WIFI and turn it off and then back on I can send email and get into the App Store and get into this site.

Hi guys, I've solved the problem today following these steps:

i) Updated to iOS 17.5 version;

ii) I've done a backup;

iii) Formatted my phone;

iv) Brought all my data and apps from iCloud.

v) The mobile data funcionality came back :)

I expect you find the same solution!

Same issue. My daughter’s iPhone 12 lost all cellular after iOS update and cannot update carrier settings. Her wi-Fi calling option is also gone. We tried network reset and eSIM. Neither helped. Verizon says we should do a factory reset. Ugh.

Just had to deal with the same issues after the last update 17.4.1 I lost cellular service and my SIM card wasn’t working for the past two days dealing with an SOS message on the top right screen my phone wasn’t working at all no calls, text, or emails had to call Verizon they sent me to the Verizon shop where they swapped out the old sim with a new SIM card seem like that was the issue everything was working fine until the next day my phone started operating into the SOS mode with no cellular service called Verizon again and spoke with a customers service rep who suggested I do a eSIM instead of a an old sim. Was very frustrating not to receive and make phone calls or text messages for the past two days it seems to be working after they did the eSIM just make sure they take out the old SIM card before installing the eSIM. Thanks Apple 😡 for having to deal with this frustrating matter for the past two days.

After trying many things, going into both verizon and the apple store to no avail, this is the only thing that worked. Not the most convenient, but it works. Very dissapointed with Apple for not only not preventing this issue but for allowing it to persist with no fix!

I have a 11 Pro Max and after iOS update same issue like most here. Not using eSIM but physical SIM card. Done Reset Factory settings and still same Mobile Service:Error.

Attempted Erase all Contents and Settings but failed as iPhone doesn’t have any network service. I’m stuck, anyone similar issue like me and succeed to get back to work? Thanks

Does anyone know if IOS 17.5 is going to fix these obviously prevalent problems with connectivity? Or is that just wishful thinking?

My iPad 7th gen cannot connect to wifi or my iPhone's hotspot- i have no cell service on the iPad and my iPhone took the 17.4.1 update