Technology Apple

How to Update to 4.0 on a Jailbroken iPhone

    • 1). Ensure your iTunes is up to date. Download and install the latest version for free.

    • 2). Open iTunes. Connect your iPhone to the computer. ITunes will automatically detect your device. Select your device in iTunes. In the Summary tab under Version, click "Check for Update."

    • 3). Wait for the update to download then follow the on-screen instructions in iTunes to complete the installation. Your device will reboot in iOS4.

    • 4). Jailbreak the phone again by tapping on the Safari icon in your iPhone. Type the URL "http://jailbreakme.com" in your browser. Follow the instructions and tap "Confirm." Your device will reboot and is now jailbroken and upgraded to iOS 4.



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