Apple released the iPhone Software update iOS Final, the latest firmware update contains a baseband firmware update 05.13.04 and it’s compatible with Ultrasn0w. Actually all firmwares since OS 3.0 up to iOS 4 can be unlocked with Ultrasn0w, for more information check our previous guide to Unlock Baseband 04.26.08, 05.11.07, 05.12.01 and 5.13.04 With Ultrasn0w. That means iOS can be unlocked with any baseband up to iOS 4.
Following is the guide to jailbreak your iPhone 3GS with iOS 4 final version,it’s your choice to preserve your baseband or not to ...
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