Re: [How-To} Unlock Your GSM iPhone to use on Other Carriers!
I have an iphone 4S from AT&T that i don't use anymore since I upgraded to a iphone 5
and it is not active on any carrier at the moment but I would like to re-activate it, unlock it and use it on Tmobile. Do i onlly need to unlock it ? Can i unlock a phone that has no carrier service ? it is running IOS 6.0.....and modem firmware 3.0.0.4
64 gig - black...
thanks..
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