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iPhone not working after 17.2.1 update

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

Posted on Dec 21, 2023 8:24 AM

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Question marked as Top-ranking reply

Posted on Dec 27, 2023 2:24 AM

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!

Complwte day is waiting all my business calls are suffering what kind of update is this ?


370 replies

Dec 23, 2023 7:10 PM in response to Locomotivation

Locomotivation wrote:

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.

Follow the guidance of the others in this thread who solved it by deleting their VPN.

Dec 28, 2023 10:15 PM in response to Alexd666

I've spoken with Apple twice and gotten no help. They don't even seem to be aware of the problem, or be working on a solution. On the other hand, I've spoken with T-Mobile twice and they've been very helpful. After a couple tries, they seem to have solved my cellular connection problem by loading a new eSim card. The second one is still working - have been back in business for nearly a day, a nice change after being down most of the week.

Dec 31, 2023 7:55 AM in response to lonnieprice

lonnieprice wrote:

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.

Very helpful post! VPN is responsible for a lot of sins, but I normally wouldn’t expect a corporate VPN to be a problem. Your explanation of why it did made sense.

Jan 1, 2024 5:00 AM in response to Hedgehog64

The

quality Apple delivers here is unbelievable. This should not happen: after the

update to 17.2.1, it is no longer possible to connect to the service provider,

i.e. no calls, no text messages. WLAN works. Really, Apple, this is such a

lousy performance, shame on you. What

a letdown. What a disappointment. Get your job done!

Jan 3, 2024 12:17 PM in response to Hedgehog64

I'm facing network issues on my iPhone 15 Pro without even updating to ios 17.2.1 and it's really frustrating. I'm currently on ios 17.2.


From past 2-3 weeks, I am frequently not able to make calls even after both caller and receiver having signals.


If I do able to connect, the voice gets disconnected in between.


Once, mobile data was not working but in my friend's iPhone having ios 17.0 and the same network provider I'm having, was able to browse the internet.


This pretty much proves that something is wrong with ios and that current Apple Dev's work sucks.


We shell above 1000 bucks on a phone and it doesn't connect to internet, can't make calls, and what not.


I'm fond of Mac so decided to pick iPhone for the first time expecting similar, good xp.


Please hire good devs and fix the issue, Apple!


(From India)

Jan 7, 2024 1:54 PM in response to GoldieSFC

I am quite certain it will just show the latest update to install. Just like when you buy a new phone it always needs to be updated and often times it’s way outdated software. But it only requires one update to get it current. I’m not sure if it’s just certain model phones that are having a problem. People should start listing on this discussion what model phone they have. Mine is iPhone SE 2nd generation and it is not affected.

Jan 8, 2024 8:31 AM in response to vitesh194

I’m having the same issue with my iPhone 12. Went to Genius Bar and they said there’s nothing wrong with my phone and it must be a software issue but I also have an error on my Apple ID settings saying some services need you to log in again but then it won’t allow me to continue not sure if that’s related. All started the day I updated. I suggested it was the update and they said no it can’t be 🙄

iPhone not working after 17.2.1 update

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