I have a 32 gig iPhone 3GS, jailbroken. I wanted to update to 3.1.2, so last night I simply downloaded a custom IPSW from the Internet, and Option + Restored to it. Great news: I kept my jailbreak, now am on 3.1.2, and still on baseband 04.26.08. HOWEVER: I do not have any service. I did not unlock my iPhone, only jailbroke it. Any help?
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