How to Unlock iPhone 3GS 3.1

by Sebastien on October 3rd, 2009

This step-by-step guide and tutorial will show you how to unlock your iPhone 3GS running OS 3.1 using UltraSn0w. This is a very simple method that requires only a few steps.

Step 1: You have to jailbreak your iPhone 3GS by following one of these tutorials.

Step 2: Once jailbroken, follow these steps:

  • Launch Cydia.
  • Add the following source to Cydia repo666.ultrasn0w.com (note there is a “0″ in sn0w, not an “o”).
  • After installing this source in Cydia, search for “ultraSn0w”.
  • Install UltraSn0w and reboot your iPhone.

Tha’ts as simple as that!

 
 

10 Responses

  1. Thanks.. just waiting for unlock of 05.11.07 (BL 05.09)

     
  2. hi after upgrading to 3.1.3 in iphone 3g i get “unable to load network list” have tried creating a new ipsw with “activate” unchecked in the pwnage too please help any inputs highly appreciated

    john

     
  3. this tutorial is very misleading… i hate it. why don’t you clarify it is for base band 4.x only ?

     
  4. WARNING!

    THIS IS FOR BASEBAND 4.X ONLY..

    THE OP IS A DOUCHEBAG AND DIDNT MENTION IT OUT!

    SO IF YOU HAVE 5.X YOU ARE THE LOSER..

     
  5. I used your tutorial to jailbreak my 3GS – 3.1 iPhone with BlackRa1n after a long wait. The jailbreak went very smoothly. I am having issues with the unlock. I followed all the steps and installed ultrasn0w, but when I put in a SIM card it keeps searching for a network and then finally displays “No Service”, I do not get the Invalid SIM message. Could you please guide me further, am I missing something?
    I have bought this phone new from a reseller so I am not aware how the previous owner upgraded to 3.1 Will upgrading to 3.1.2 help with the unlock process?

    Thanks for your help!

     
  6. I updated my baseband to 05.11. I’m just waiting for the new unlock. :(

     
  7. I’m LOST i used the pwnage 3.1.4 and now i have the Modem Firmware 5.x.x
    Now what??? tell me what i can do rom now on? just wait like a loser ???

     
  8. I’m out of the country. My Iphone can’t directly connect to the internet. How can i unlock it with no internet connection?

     
  9. hi, the jailbreak worked perfectly, whoever the unlock was unsuccessfull. i have Modem Firmware 05.11.07 and i did all the steps mentioned in this tutorial, but i got “Locked SIM” when i put SIM in the iphone after installing ultrasn0w…

    can Firmware 05.11.07 be unlocked?

    Please help.

     
  10. hola a todos me puse a actualizar mi iphonne con el itune 9 y se me kedo con el icono de itune y un cabe usb y n entra k puedo hacer para desblokearlo se los agradecere gracias please hep my…….

     

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