Help,
I have received a replacement white 3G 16GB iPhone from Apple. I do not have a AT@T SIM,, but do have GSM SIM and know the APN for my carrier. When I turn phone on it says "insert valid SIM or unlocked PIN". I have a new Macbook Pro with latest iTunes. I do not know what firmware I have since I can't get by first screen. Serial # starts in 5K9444. I want to unlock and jailbreak with new Blackra1n. Any suggestions out there? Can I borrow someone else's AT@T SIM, to get started? Any and all help is appreciated and Thanked!
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Help with SIM card for unlock
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