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Repair information and guides for the CDMA version of the fourth generation iPhone. Model: A1349 / 8, 16, or 32 GB storage capacity

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Invalid sim / no service iOS 6.1.2

Hi people,

Just changed a screen for someone, inserted his sim and it says no service. Tried to turn airplane mode off and on which usually fixes this problem and then says invalid sim.

After reading a few articles I have learnt its the software issue on iOS 6.1.2 but haven't found a solution

Its a phone/software issue as the sim works in a different phone.

Please help

Answered! View the answer I have this problem too

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Here on iFixit

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Here's your solution: http://blogs.agilefaqs.com/2012/11/21/im...

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