Why Iphone 4S won't read T-mobile Sim card even though factory unlocked?
I have an iphone 4S and it reads Att sim card no problem, i had the phone factory unlocked and it even said Congratulations your iPhone is unlocked after i restored it in iTunes, but all it says is no service i tried two different T-Mobile sim cards. I even checked my imei number online and it said the phone was factory unlocked. Is there anything i can try, i've never ran across something like this.
It sounds like there's something wrong with the software on the iPhone. Was it jailbroken before? I suggest doing a DFU restore of the iPHone or removing the jailbreak if it has one. Is it being blocked for some reason? Lost/Stolen/Unpaid debts? I'm not sure, but try the DFU restore first.
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