Cellular network off after 17.4.1 update

Apple support will not be helpful, but if you want to fix this without a headache just backup your phone and do a factory reset because nothing else will do the trick.

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!

Try turning off your Wifi and turning on Airplane mode then shut down and let it remain off for a few minutes (I left mine off for about 10) then turn on and turn off airplane mode- this should fix the issue

Same exact issue, verizon fixed it and it happened again in 8 hours, I found a fix for myself. Originally was even occurring with a physical sim added in on top of the e-sim. First go turn off automatic updates in settings under Software update. Then turn on Airplane mode, reset network settings; if it’s still not back, turn on Airplane mode and hard restart (Volume up, down, hold power till apple logo). Should be back up and working. Do not attempt to install new ios unless you know it has been fixed or you want to rinse and repeat. If none of this works, you may already be on the new ios, you will need to backroll the update through apple. Hope this helps, just my experience; pretty sure the process of updating was bricking my cellular certificates but since I wasn’t on wifi it couldn’t get any further in the install process as soon as cellular dropped out.

FIX: Anyone who has encountered this issue. Make sure your phone is backed up and you’re going to have to factory reset the phone to be able to use cellular data again. This has worked for multiple people.

it happened to me too. I solved by doing a backup and restoring the phone

I was told from apple support that the software update was causing the issue. The only solution given was to wait for a new update as they were working on it due to multiple people reporting the same issue internationally.

I have this same issue. The "genius" at the Apple store told me they could try to replace a part but they'd have to order it which could take awhile. They factory reset my phone, but my restore from iCloud won't work, so I walked out of the store with my same phone factory reset to out of the box settings so at least I can make calls/send messages. Verizon is overnighting me a phone, so I'm going to try and restore from iCloud on the new one and see if that works. Otherwise, no real solution at the moment.

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.

the iso update is surely the issue. Didn’t have any issues until my phone updated overnight. Went to my carrier, and they believe it is the iOS update. They tried a new e-sim, reset my network settings, amongst other things.

I work in software development and while things are tested thoroughly before deploying the changes, issues do sometimes still happen. No one is perfect and with the number of people having issues, I believe apple messed up the iOS update.

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.

If anyone at Apple is seeing this, as they should since it’s an official Apple Community, what is the status with this issue? As you can see, many people have this same problem atm. I’ve had 3 visits to the Apple Store in the last month, tried everything possible, followed all possible instructions, I reinstalled iOS 17.4.1 in the store, I didn’t restore from backup, as it was assumed maybe the back up was corrupted, and I redownloaded everything, all the apps, manually from the cloud. The problem is still there. My carrier connection only works intermittently, and my battery is being drained because it keeps connecting all the time. Luckily, unlike others here, I can still connect to WiFi and use my phone at home, at work, or anywhere I have access to a WiFi. But my phone calls still drop suddenly. It’s not the carrier’s issue. I checked with them too.

Is there any official acknowledgment of this huge problem for so many? Any timeline until it’s going to be fixed? Anyone at Apple?!

Sorry to break it to you buddy, it’s IOS side of things, thousands of people are having this same problem after the update on relatively new IPhones

It’s definitely an iOS update issue, You can see my post for details. Breaks Private LTE (band 48) connectivity.