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 "" in your browser. Follow the instructions and tap "Confirm." Your device will reboot and is now jailbroken and upgraded to iOS 4.

Leave a reply