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i have iPhone 4 4.1 JB from ebay.
i want to know is my iPhone locked or unlocked?
Put your sim inside of it and if everything works then it really doesn't matter as long as it's working for you
If not, you should be able to unlock it
it's work, but i want to make update from iTunes.
DO NOT do updates to the phone. If it's an update just for iTunes, that is ok. Just don't update the phone to a newer firmware (4.2.x) or you will loose tour jailbreak and have to redo the unlock, of its unlocked.
Sent from my iPhone using iCafe app
Yeah like roofmonkey said don't update , you can click cancel (while Ipsw is downloading) if you pressed update by accident .
Actually, it's an iPhone 4, so he won't be able to unlock it. If he relies on an unlock and updates in iTunes, he'll get stuck at the emergency call screen and be forced to jailbreak and hacktivate with redsn0w. If he doesn't have his 4.2b3 SHSH, it will be a tethered jailbreak. There is no unlock for 4.2.1 on the iPhone 4, so his sim card won't work and his iPhone will be downgraded to an expensive iPod Touch.
Skull, beware of the update button if you rely on an unlock...