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Jailbreak iOS 4.0.1 on iPhone 3G with Redsn0w 0.9.5b5-5

Apple recently rolled out its first iOS 4 firmware update (iOS 4.0.1) for iPhone 3G, 3GS and iPhone 4 users. iPhone 3GS and iPhone 4 users are requested to wait until iPhone Dev Team releases a jailbreak tool which can jailbreak iOS 4.0.1 on the said devices. However iPhone 3G users can easily jailbreak iOS 4.0.1 by using the latest version of Redsn0w (v0.9.5b5-5).

How to Jailbreak iOS 4.0.1 on iPhone 3G with Redsn0w 0.9.5b5-5

*Find download links at the end of post

  1. *Download iTunes 9.2.
  2. *Download Redsn0w 0.9.5b5-5
  3. *Download both iOS 4.0 and iOS 4.0.1.
  4. Restore iOS 4.0.1 IPSW using iTunes 9.2 to your iPhone 3G. Don't worry, it wont upgrade your baseband from 05.13.04. You will still be able to unlock it using Ultrasn0w.
  5. Once iOS 4.0.1 is successfully restored on your iPhone 3G, run Redsn0w and click on the "Browse" button. Select iOS 4.0 (NOT iOS 4.0.1) file you downloaded in step 3.
  6. Redsn0w 0.9.5b5-5

  7. Check "Cydia" and click on the next button.
  8. Redsn0w 0.9.5b5-5

  9. Check Enable Multitasking and Wallpaper. Please note that this step is optional, if you don't want to use these options, simply uncheck them.
  10. Turn off and unplug iPhone 3G from your computer.
  11. Redsn0w 0.9.5b5-5

  12. Connect your iPhone in recovery mode. For that you will need to quickly hold "Power" button , after holding the "Power" button for 3 seconds, you will now have to hold "Home" button for 10 seconds. After that release "Power" button but keep holding "Home" until the installation automatically begins.
  13. Redsn0w 0.9.5b5-5

  14. Now leave the rest for Redsn0w, your device will reboot automatically once the process is completed. You should have a fully jailbreaked iPhone on firmware 4.0.1

Download Links:

Download iTunes 9.2 for Windows and Mac
Download iOS 4 for iPhone 4/3GS/3G, iPod Touch 2G/3G
Download iOS 4.0.1 for iPhone 3G, 3GS and iPhone 4
Download Redsn0w 0.9.5b5-5 for Windows | Mirror
Download Redsn0w 0.9.5b5-5 for Mac | Mirror
[via MuscleNerd]

Update 1: Unlock iOS 4.0.1 on iPhone 3G with Ultrasn0w 0.93
Update 2: Jailbreak iOS 4.1 Beta 2 on iPhone 3G & iPod Touch 2G with Redsn0w 0.9.5b5-5
Update 3: Jailbreak iOS 4.0.2 on iPhone 3G & iPod Touch 2G with Redsn0w 0.9.5b5-5

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Leave a message...

    anne4 years, 9 months ago

    After I did the redsnow jailbreak, the phone is still not activated. how come?

    Zuss6 years, 3 months ago

    Just wanna thanks u :)