Posted by: n3c3ssary3vil May 15, 2010
Iphone 3g 8gb 3.1.3 baseband 5.12.01 UNLOCK
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as of now you can't unlock the iphone 3g with 5.12 baseband..
use spirit jailbreak spiritjb.com 
the unlock is probably going to be released once the new iphone os 4.0 is made available. so maybe a month or so..
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