activation code, iphone carrier lock

i want to unlock my iphone where can i write the activation code? i contact my carrier service because i needed to unlock my iPhone 5c. they gave me an activation code and told me that when i put the new sim it will demand for that code. but it didn't. all it says here is sim not valid. what should i do?

iPhone 5c, iOS 8

Posted on Jun 20, 2015 4:00 AM

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activation code, iphone carrier lock

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