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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 9:15 PM in response to CristinaPCG

Reset your Network Settings

Go to Settings > General > Transfer or Reset [Device] > Reset > Reset Network Settings. This also resets Wi-Fi networks and passwords, cellular settings, and VPN and APN settings that you've used before.


For a clear idea of what is reset and how, and what is not affected, read this short but informative article:

https://www.lifewire.com/what-does-reset-network-settings-do-5184073


Dec 25, 2023 10:18 AM in response to Robtseattle

Apple is not going to fix it globally, because it is YOUR issue, not an issue for hundreds of millions of iPhones that have been successfully update to iOS 17.2.1.


If you have neither cellular voice nor data, contact your carrier. If you can make and receive calls and make and send SMS messages, and use VPN, go to Settings/General/VPN & Device Management/VPN and delete your VPN profile.


If you don’t have VPN installed, contact your carrier’s tech support.

iPhone not working after 17.2.1 update

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