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Message: <blockquote data-quote="Jias" data-source="post: 2706208" data-attributes="member: 908829">i accident update my iphone 4.3.3 to 6.0 then i downgraded to 4.3.3 again but the base band didn't change. so my new base band is 04.12.02 . is there a way to change my base band to lower version so i can use my gevey sim? cause now my iphone 4 is jailbreak 4.3.3 base band 04.12.02 but i cant use it for calls since my gevey sim wont work on base band 04.12.02 ..sorry for my bad english ..</blockquote>