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OS 5.1.1 - no cell signal after upgrade!!

I just upgraded to OS 5.1.1 on my iPhone 4S and now it tells me that I have no cellular service. !!! Help!

iPhone, iOS 5.1

Posted on May 9, 2012 9:00 AM

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48 replies

May 13, 2012 2:17 AM in response to CandaceGal

I have recently upgraded my iphone 4s to OS 5.1.1 and the next morning i had no phone service. It showed my signal with Vodafone as 2 bars but i was unable to make or receive calls. I have had my sim replaced and went to Apple in Southampton. They did all the usual and it worked, but then failed again. They replaced my phone and its still doing it. The issue appears to be intermittent. It seems to be less of an issue in an area with excellent coverage

Any ideas apple

OS 5.1.1 - no cell signal after upgrade!!

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