iOS 4.0 Iphone 3gs on 4

Discussion in 'iOS Jailbreak & Cydia' started by ericlam2728, Jun 22, 2010.

  1. ericlam2728

    ericlam2728 New Member

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    so i updated to 4.0 i need 3.1.3 to unlock can i sitll downgrade ? iphone 3gs

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