Unlocked iPhone 4/4s still able to use with AT&T?
My uncle has an old iPhone 4/4s (I don't remember which one) and it's an unlocked phone. Let's say he gives it to me and I have AT&T. Though it's unlocked, can I still use it with AT&T and update the phone's iOS regularly? Because I know that if you have an unlocked phone for let's say, T-Mobile, you can't update because that'll mess up your jailbreaking stuff.
It depends on the iphone if it was originally used for verizon than no. If it was used with at&t then unlocked than yes
It depends. If it was unlocked threw a jailbreak or threw a company. A jailbreak unlock would be lose in an update. A factory unlock will never be lost. If it was a Verizon or Sprint Iphone then you can't.
Because it is unlocked it will be able to work with any GSM carrier. Even if it was still locked it will be able to work with AT&T.
In the T-Mobile case it depends on how the unlock was done. If it is a software unlock, which usually involves jailbreaking then yes you would have to wait for those tools to update as well to be able to unlock again, but if it is factory unlocked, like it is sounding in this case then you wouldn't have to worry as nothing will undo that unlock.
If its a GSM model if not nope! Also is it has a SIM card slot get a prepaid SIM card with AT&T cut it a bit an put it in the iPhone.
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