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I want to know the exactly same thing.... Anyone already tried? Can you create a "custom" .ipsw with iPwner?
 
That build, which wasn't officially released, has been out for a few hours.

Give it time. The officially release will be the one you want unlocked anyway.
 
Unless the baseband was updated, your unlock should stick. I haven't tried it, but the worse thing that would happen is that you'd have to Activate.

So I'm more concerned with someone getting through the Activation.
 
It's been three hours. Instant gratification much? Give it time. Like days. Or else, you do it if you need it so quickly.
 
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