iPhone 14 Pro Max call failure and data issues after iOS 26 update

I upgraded my iphone 14 pro max to iOS26 from iOS18.7 and after the update when I try to make a call it shows call failed, and even when I turn on my mobile network in doesn't work. I can't even turn on my hotspot also. I can't use my data to search any browser or anything. I don't know why this is happening. Please what do I do because i cannot connect to the internet except I'm connected to a Wi-Fi but it wasn't like this before the upgrade. Everything has been working perfectly before now. Please how do I fix this


[Re-Titled by Moderator]

iPhone 14 Pro Max, iOS 26

Posted on Sep 16, 2025 7:41 AM

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Question marked as Top-ranking reply

Posted on Sep 16, 2025 7:43 AM

Have you tried to see if you in need of a carrier settings update?


  1. Make sure that your device is connected to Wi-Fi or a cellular network.
  2. Tap Settings > General > About.
  3. Follow the onscreen instructions to install your carrier update.


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iPhone 14 Pro Max call failure and data issues after iOS 26 update

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