After updating my iPhone last night to 17.2.1 I can no longer connect to my network provider. Tried the resets and still it does not work!
very frustrating.
Trusted Apple and iPhone for years, now not so sure
Solved my problem after 8 hours of troubleshooting! After the 17.2.1 update, my iPhone 14 Pro Max would not send or receive calls and got hot from accelerated battery drain. First AppleCare walked me through hardware diagnostics, network resets, backups and restores but the problem persisted. Next, Verizon helped me with a new eSIM, but the problem continued. Next, I focused on my company's corporate software, because I was intrigued by the VPN discussion in this forum. While I don't use a VPN, my iPhone is managed by my company's installation of Microsoft InTune, which I noticed (Settings:General:VPN & Device Mgmt) had a signing certificate (IOSProfileSigning.manage.microsoft.us) that had expired December 12, 2023. To test this theory, I removed this Management software and my phone's cellular calls worked perfectly again! So for the final steps, I worked with my company's IT department to reinstall the Management software, which has an updated IOS signing certificate, and the phone is now back to normal. Sharing in case others find my painful tech journey useful.
I think you should contact your carrier.
I had the same problem and fixed it with change the APN settings manually.
i had the suffering!! Initially I have installed the update over cellular data so I thought maybe because it should be via laptop. So reinstalled the iOS via laptop. Issue not solved. I have all the possible network resetting on device and via the carrier and even replaced my SIM card…. Still no solve !!! Guess need to downgrade to 17.2
Exact same issue after upgrade to 17.2.1.
I use t-Mobile. I spoke with their support and also brought the phone to the store.
They replaced the SIM twice, first with an eSim and then with a brand new SIM card at the store.
No VPN profile installed. Still no IP on personal hotspot. Only infrequent internet on the phone. Most of the time I get a message that says I need to activate cellular data with my provider, even while the connection shows 4 bars of 5Guc.
Opened a ticket with Apple and sent diagnostic logs.
A major inconvenience over a busy travel season.
Locomotivation wrote:
Interesting. My experience with the t-Mobile Store was that they had no explanation or solution. They couldn't get the cellular data connection to work.
That might be because T-Mobile stores have no qualified techs in them, only sales people, just like Verizon and AT&T. For T-Mobile and any other US carrier you are better off calling to speak to tech support than going to a store, and asking the CSR to escalate your issue to a real tech.
Same, this happened to me yesterday (1st Jan) which is a week after I upgraded the software. I went to my phone carrier (Three Mobile in U.K) which normally messes things up but after a few attempts with new SIM cards, it was evident that it was a device issue rather than a network issue. I went to the Apple store and they informed me that I need to buy a new phone as the one I am using is a four years old device :-/ I refuse to agree that I need to purchase a new handset after four years, especially if I spend the money I do buying from Apple. I need my celluar reception for my business, it is harmful not having it. Apple is loosing its status and I am not sure what to do....
I would look at your battery health chart and see which apps are responsible for the rapid draining of your battery.
Check for screen on times vs screen off times.
Turning off background app refresh always can help, never hurts performance.
If all else fails attempt to restore device back to factory settings before booking an appointment for the Genius Bar.
Hi Guys,
If the "no sim" problem started just after IOS 17.2.1 installed it is probably a hidden error during installation. To solve it you have to enter your iPhone into SAFE MODE and then connect to a MacBook or PC with ITUNES installed. Then automatically download and install the newest (i did 17.2.1 again) IOS. Then restart and voila !
My 13mini was updated to 17.2.1 last night and my incoming calls were going straight to voicemail. I rebooted the phone and it is working now. Keep in mind that the 13 mini has a hard SIM card. So if you try rebooting and it doesn’t work, it may be e-sim related.
After two weeks. I’m using an old phone because my 13 pro max still won’t work. Here’s what Ive learned.
Last night Apple tried to do a hard push for the 17.2 update on another phone of mine which maybe they did with many others. This might help us by having more people with the same issue.
[Edited by Moderator]
Same here… My iPhone 11 S was working fine until the recent update,
and now I am having a whole assortment of issues with texting androids, sending pictures, and calling…and
people telling me about messages that I never received… I have lost money because of these messages…
it just goes in and out it will be fine and then for hours I won’t be able to do anything and just have to wait…??
My GPS and other apps will work when I’m driving and then all of a sudden they just won’t…. then it tells me to connect Wi-Fi in order to make work??
meanwhile, I’m going 65 miles an hour trying to figure out what exit to take….??? WTF apple??!
as a lifelong Apple user, I can say that if this problem isn’t remedied soon, and I have to get a new phone, I will not be buying another iPhone.
Bjscott88 wrote:
Will they fix those cellular network connective problems WiFi problems etc in iOS 17.3 when it come out?
it goes from 3 to 4 bars sometimes it goes from 4 bars to 3 bars sometimes disconnects for 10 -30 seconds then reconnects
Billy Scott
That is a symptom of a corrupt VPN profile, so if you use VPN go to Settings/General/VPN & Device Management/VPN and delete the VPN profile.
17.3 all ready out !
Just update 🤔
I’ve had the same issue. Force restart helps for a few days. But eventually that wouldn’t take away the cellular issue. And won’t let me update
Stop talking about VPNs when the guy said he has no VPN
My daughter has this same issue right now. There is something in this latest update that is causing this. We went into the Apple store, they went thru some stuff, told her to re-download the new IOS update, she did, and it worked for about 5 hrs before getting back to the same issue.
iPhone not working after 17.2.1 update
