How to Jailbreak and Unlock iPhone 3GS New BootROM With JailbreakMe and Ultrasn0w

Written By Sam on 2 August 2010
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JailbreakMe 2.0 is a new web based Jailbreak tool that can be used to Jailbreak iPhone 4, iPhone 3GS, iPhone 3G on iOS 4.0.1/4.0 and iPhone OS 3.1.3/3.1.2. JailbreakMe 2.0 can also be used to Jailbreak iPod Touch 3G/2G/1G on iOS 4.0/3.1.3/3.1.2 and iPad on 3.2.1/3.2. If you are eagerly waiting to Jailbreak your MC model iPhone 3GS with new iBoot then you can now Jailbreak it with JailbreakMe. Just read the below guide to Jailbreak iPhone 3GS MC Model (New iBoot) on iOS 4.0.1/4.0 or iPhone OS 3.1.3.

Jailbreak iPhone 3GS MC Model (New BootROM) on 4.0.1/4.0/3.1.3 Using JailbreakMe

  • Download and install iTunes 9.2.1 if you haven’t done it already.
  • Launch iTunes and take a backup of all your data present in your iPhone 3GS (MC Model).
  • Open Safari Browser on your iPhone 3GS (MC Modle) and navigate to “http://jailbreakme.com” or “http://jailbreakme.modmyi.com/
  • Now touch “Slide to jailbreak” to begin the Jailbreak process on your iPhone 3GS (MC Model).
  • JailbreakMe will download the necessary files to initiate the Jailbreak on your iPhone 3GS.
  • Once the download is completed iPhone 3GS (MC Model) jailbreak will be initiated.
  • After the iPhone 3GS (MC Model) Jailbreak is completed you are shown a welcome message – “Cydia has been added to the home screen”.
  • Click “OK” and you will have a Jailbroken iPhone 3GS (MC Model) in your hands!

Procedure to Unlock iPhone 3GS (MC Model) With Ultrasn0w

  1. Launch “Cydia” and go to “Manage” section present on the bottom of the screen
  2. Touch on “Sources” and then on “Edit” and finally on “Add”.
  3. Add the Cydia URL as repo666.ultrasn0w.com and touch on “Add Sources”.
  4. Once the Source is added to Cydia, hit the return to Cydia button at bottom of the screen and then Done button
  5. Now search for “Ultrasn0w 0.93” and install it.
  6. Once the installation is completed just reboot your iPhone 3GS and it will be unlocked!

Once your iPhone 3GS (MC Model) on iOS 4.0.1 is unlocked you can use any SIM card of your choice.

3 Responses to “How to Jailbreak and Unlock iPhone 3GS New BootROM With JailbreakMe and Ultrasn0w”

  1. nypop says:

    …thank you sooo much,you made my day,works perfect,after hundreds times without success…thanks again,I will pass this link to all my friends!!!!

  2. carine says:

    Hi, your guides is so clear and easily understood, so i’ve sucessfully jailbroken my phone. but right now how do i load installous?

  3. Tony says:

    go to cydia, then go to manage, then sources, then on the top left it would say edit, touch it, then touch add and enter the following : cydia.hackulo.us and download the stuff on that sources

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