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All replies
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Helpful answers
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Dec 13, 2012 11:10 AM in response to Talitoby Smara2002,I have the same problem after ugrading from ios 4 to ios 6.1 (activation server unavailable).
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Jan 20, 2013 1:53 PM in response to Talitoby johan kabalt,i have the same problem, can someone help me?
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Jan 20, 2013 2:52 PM in response to johan kabaltby imobl,Generally this is a sign that the iPhone had previously been
hacked/modified/jailbroken and the update relocked it to the
original wireless carrier. If this is the case, only that wireless
carrier can unlock your iPhone. You must contact them to see
if they offer unlocking and if you qualify.
Where did you acquire this iPhone?
What wireless carrier did you use before this problem?
Does the app Cydia appear on your iPhone?
What does it say when you look at Settings=>General=>About=>Carrier?
Unauthorized modification of iOS
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May 13, 2014 1:36 AM in response to imoblby crossseven040,Vodaphone agreed to unlock my iPhone 4s which was my friends contract phone but I'm getting that same message
And its sometimes saying invalid sim, so I'm stuck