Sim failure issue after iOS version 16.6 update

after updating my iPhone from 16.5 to 16.6 my phone shows that sim failure i tried by removing the sim restarting reset the settings almost everything but it’s not working what should I do

iPhone 5s, iOS 12

Posted on Aug 4, 2023 11:06 AM

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4 replies

Aug 8, 2023 02:37 PM in response to AJMALAJ

I was able to resolve this on an iPhone 13 Pro Max.


Here are the instructions:

  1. Power down phone.
  2. Remove SIM card.
  3. Power up phone.
  4. After phone powers up and connects to Wi-Fi, install SIM card.


This worked for me, done in this order.


Power cycling, hard reset, and SIM out/in on their own did nothing.


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Sim failure issue after iOS version 16.6 update

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