Q: i have upgraded my iphone and mum wants to use my old one but her new sim wont work?

please can someone help? it is saying invalid sim? i have got a new sim from 02 which is what this phone was when i fiirst bought it, i have just upgraded and want to pass this one onto my mum.

iPhone 4S

Posted on Mar 19, 2014 1:47 PM

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Q: i have upgraded my iphone and mum wants to use my old one but her new sim wont work?

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by wegras,

wegras Mar 19, 2014 1:50 PM in response to richlewis86
Level 6 (15,194 points)

Wireless

Mar 19, 2014 1:50 PM in response to richlewis86

start here

http://support.apple.com/kb/TS4148

I assume you have not hacked or otherwise messed with the iOS
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Q: i have upgraded my iphone and mum wants to use my old one but her new sim wont work?

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by wegras,

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