How to Unlock iPhone 3G 3.1 OS with Ultrasn0w

By Sandip Dedhia on September 16, 2009
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Unlock iPhone 3G 3.1 with Ultrasn0w

You can download official PwnageTool 3.1 and jailbreak iPhone 3G 3.1, iPhone 2G 3.1 & iPod Touch 1G 3.1 fimrware. Unfortunately PwnageTool 3.1 is not available for windows it’s only for Mac OS X. however if you can get Custom iPhone 3G ipsw then you can jailbreak iPhone 3G 3.1 on Windows.

We have written long Guide on how to jailbreak iPhone 3g 3.1 and now here is guide on how to unlock iPhone 3G 3.1 OS with ultrasn0w. please keep in mind before attempting to unlock iPhone 3G 3.1 you must jailbreak it first with pwnagetool 3.1.

How to Unlock iPhone 3G 3.1 OS with Ultrasn0w

1. You must install Cydia when you jailbreak iPhone 3G 3.1

2. Launch Cydia/ Icy

3. Select Manage Tab at the bottom of screen and go to Sources

4. Press edit button and Add following Repo URL

http://repo666.ultrasn0w.com/

5. Once the source has been added press the large Return to Cydia button.

6. Go to repo666.ultrasn0w.com from the list of user entered sources and select Ultrasn0w from list

7.  Click on Install Button and confirm the installation and wait for installation to complete

8. Now press the Home button then power off and power on the iPhone. You do this by holding down the power button for 3 seconds then moving the power slider that appears to the right. Press the power button again to turn on the phone.

9. That’s it, Now insert SIM card of your choice

Posted in , | Tagged , , | 13 Responses
Sandip Dedhia

Sandip Dedhia

Sandip Dedhia is the founder of Blogsdna.com, he loves to write on technology, gadgets & web services. At Blogsdna you can read his Windows & freeware software related articles. He is on twitter too @sandipnd View author profile

  • Shin

    I failed to unlock my iPhone 3G with this guide. It always shows No SIM. I read on Dev Team Blog that using QuickPwn can’t unlock iPhone 3G at least for now. Is it true? Please help me please.

  • iCER

    Anyone tried it yet? Did it work?

  • Lowell

    I tried also but I wasn’t able to get my 3G on 3.1 firmware unlocked. i did add the source ultrasn0w but it didn’t work.

  • Famous

    People,

    FW 3.1 isnt unlockable at the moment.
    The guide is misleading for a lot of people cause they dont read the manual correctly.
    To update/jailbreak, you should avoid updating directly with iTunes to 3.1, this causes an upgrade of the Baseband which ultrasn0w or any other tool cant unlock.
    The manual states to use pwnagetool and update with a custom firmware with is 3.1 BUT with Baseband of 3.0(1)

    All of you who have updated directly to Baseband 5.11.07(check your info on iPhone) have to wait till further notice of an unlock by Dev-team or anybodyelse who is clever enough:)

    Hope this clarifies a bit the confusion.

  • amg2009

    my base band 3.1(7C144)
    no sim
    please help

  • Omar Qamar

    I tried to unlock my 3G 3.01 .. followed the instruction but it doesn’t accept firmware bundle… even restored it and lost the data :) any help???

  • rkp

    i have tried all the things jailbreak + ulrasn0w but “no service ” some time ……
    Many of the times my Iphone 3G 16GB shows “No Service” in the specific network area,

  • option

    same here…
    it still searching… like forever. :(
    anyweiz, ty for posting this. its kinda cool for me. lolz

  • http://sandykumar@yahoo.com sunny

    hi i have iphone 3g 3.1 if any one no how let me thank u

  • Federico

    Guys, some of you might be saved. I made the same mistake. After many hours of googling, I found that iphones that have bootloader version 05.08 can downgrade the baseband to 04.26, which makes ultrasn0w work.

    Follow this instructions: http://jaxov.com/2009/09/downgrade-your-iphone-3g-firmware-3-1-baseband/

    I downgraded to 3.0.1 before doing it, but I suspect is the same in 3.1. The thing is, the bootloader needs to be 05.08 (first 3G iphones had it).

    Hope it helps.

  • Andrew

    Readers you do not need to go through this method anymore Geohot has come out with a method that can unlock any current modemn. Please download the latest purplera1n. Also if you have any other phones that need unlocking I recommend eunlock.net

  • http://www.the-iguide.com Unlock iPhone 3Gs

    The Geohot method actually works really well, it’s the easiest to use by far now these days and it works up to firmware 3.1.2 on the iPhone 3G and 3Gs!

    And best of all – it’s free! :)

  • Pramod

    I accidently upgraded my phone to the 3.1 recently. To get it jailbroken again I used the geohot method (which doesn’t require a 3.0 downgrade). But for some reason it still wouldn’t unlock the phone to be used with other sim cards. After 2 days of displaying “no service” and 40 unsuccessful attempts to see the geohot iphone unlock to completion (the sn0w application), I gave up on it, found this blog, logged on to Cydia via wifi and downloaded this ultrasn0w app and it worked like a charm. If there is anything I’ve learned it’s that there may not be one method that does it all 100% of the time. Iphone jailbreakers unite!

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