iOS 26 Cellular doesn't work after update

same issue, upgraded SIM card to eSIM no fix. Bought a second eSIM for a 2nd number, issue still persisted. reset network settings, did not help, pain in the butt to re-enter all lost, passwords and logins. my network customer service thought it was a network issue, but only certain people affected, Apple iPhone users SMH. recently upgraded have not had too many issues so far. Reparations are needed for all the headaches they have caused all their customers.

After updating my iPhone 16e to iOS 26, I started having the "No Service" or "SOS only" issue. Updating to iOS 26.1 didn't help.

I tried my SIM card in an iPhone 12 Pro Max with iOS 26.1 and had the same issue, but it works fine in my old iPhone 5 on iOS 10.3.4.

I don't want to get stuck with a 13-year-old phone. Please fix it!

I updated to IOS 26.1 a few days ago on my 19 month old iPhone 15 pro. Cellular network is now no longer available. I’ve tried all things shown on this post without any success.

Having run apple support software I took the phone to a local store in UK. After a quick check I was told that the fix would be to replace the phone internals at a cost of £502 and around 1 week! That’s around 50% of the value of the phone. I’m trying to decide whether to stick with apple or look at other manufacturers devices.

Any tips or info gladly received. 🙏🏼

I’ve been having the same problem ever since updating to iOS 26.1 on my iPhone 12 Pro Max.

I went to the Genius Bar, and the initial diagnostics showed that cellular, Wi-Fi, and Bluetooth were all not working. They then restored my phone, and everything passed the diagnostic tests afterward.

However, once I got home and inserted my SIM card, everything stopped working again. It’s clearly a software issue, but the only advice they gave me was to trade in the phone…

It’s really frustrating.

Not yet.

• This phone do not have any issue with 2 other SIMs (other service providers).
• The SIM with issue worked fine with an iPhone at iOS 18.x, an older iPhone at iOS 16.x and also an Android device.
• No any issue before updating to iOS 26.1

To me the SIM clashed with the iOS 26.1 and hanged at the status of searching a service, purely a software issue.

I don't dare try again because if the issue come up again, I need to restore the phone again with backup.

Now I just use it with Wifi and wait until next version and hope this issue get resolved.

If you have a phone with dual physical SIM slots, try moving the SIM to the other slot:

Call failed on iPhone 14 Pro Max after iO… - Apple Community

I noticed it on first public beta and reported it. Surprised they never fixed it...

Did you buy a dual sim tray and try inserting your sim on the other side?

Facing the same issue. I cannot make calls and cannot connect to mobile data ever since I did the update. Apple support says I have a problem with my hardware and should contact the nearest service center. However, I don’t consider this because this problem only started after the update!! So apple should release a patch asap to fix this!

I’m facing the exact same issue. Ever since I installed the update, I can’t make calls or use mobile data at all. Apple Support just says it’s a hardware issue and tells me to go to a service center, but that makes no sense — this only started right after the update!

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Same here i was using 2 sim one was phyisical sim and 2nd was esim but today after update my phone just lost the settings for esim and the 2nd sim just got removed now I can’t add it again

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Same thing happened to me too with iPhone 14. Now there is no cellular so can’t make any calls or send any messages. Apple diagnostics said it was a hardware problem but I didn’t have a single problem before the update. It worked perfectly. I’ve tired every solution multiple times. How will this be fixed? And how long will it take? It’s essential to be able to use cellular.

I am surprised this issue hasn’t been fixed yet. Just today, I saw there’s an update to ios26 and naturally, I did the update only to be confronted with this same issue of loss of sim. I truly didn’t expect this and it is such grave inconvenience for me. Hope apple fixes this problem immediately please.

i updated to iOS 26 last night right after my phone is not getting any internet connection and Wi-Fi internet connection as fast internet wifi does not receive any internet connection when I hotspot to my iPad from my phone internet, my iPad gets internet from my phone, but my phone does not get any internet connection after ios 26 update

Yes…

It’s frustrating. My iPhone 16 pro max was working just fine but when I updated from iOS 18 to 26 and I’ve not been able to make calls, it keeps saying called failed.

I’ve restarted, I’ve reset network settings yet I can’t make calls.