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How to unlock iPhone 3G Firmware 3.1 – Pwnagetool & Ultrasn0w

By on September 18, 2009 in Apple, Gadgets with 17 Comments

iphone unlockApple released the Firmware 3.1 for iPhone and iPod touch to change the UI and also lock the phone if it was unlocked. Now, the iPhone dev team has released the Pwnagetool 3.1 for mac which can jailbreak the iPhone 3G phone running on 3.1 firmware so that you can install apps that are not accepted officially by Apple.

Here is a tutorial of how to Unlock an iPhone 3G running 3.1 firmware (unlock firmware 2.1 and unlock firmware 3.0, both in Apple iPhone 3G) –

Requirements –

  1. Apple iPhone 3G
  2. iPhone 3.1 Firmware
  3. Pwnagetool 3.1 [Download Link]
  4. Ultrasn0w
  5. Apple iTunes 9 software

Here are the steps you need to follow to first jailbreak the phone, and then proceed with the unlocking process –

  • Download the Pwnagetool 3.1 for Mac, and install it
  • Open iTunes 9 software, or upgrade to it if you have the previous version. Connect the iPhone and download the firmware file to your computer
  • Open Pwnagetool 3.1 and then select the device as iPhone 3G and the firmware file location. Go with the further steps which will carry out the entire jailbreak process.
  • Now after the IPSW building process is done, you need to restore the firmware which you download by holding down the option key(in your mac, this is a tutorial for mac users!)

By the following above steps, you jailbroke the iPhone 3G and upgraded it to 3.1 firmware, still the baseband is protected, which we wanted.

Now you can install the 3rd party apps to the iPhone to carry out the unlocking process. See the following steps(you might have already seen the Cydia or Icy app in your iPhone after the jailbreak process) –

  • Run Cydia or Icy
  • Please add the repo repo666.ultrasn0w.com to Cydia or Icy. That last “o” is actually the number zero “0”! If you use the letter “o” you’ll get an error.
  • Search for ‘ultrasn0w’ in cydia or icy and install ultrasn0w
  • Reboot your iPhone 3G

After installing the Ultrasn0w, restart the iPhone. Then go to Settings > General > Reset > Reset Network Settings and the phone restarts.
Then go to Airplane mode, switch it on and off once. Then go to the main screen and wait for a couple of minutes and the signals would appear with your network name on the right to it.

iphone 3g unlocked

Notes:
> This tutorial is strictly for IPHONE 3G and no other device like iPhone 3GS etc. so don’t experiment using any other model of the phone other than 3G.
> Check this tutorial to Unlock iPhone 3G 3.0 firmware using redsn0w and ultrasn0w, if you are still searching to unlock 3.0 firmware device.
> Don’t keep on trying and end up locking your phone permanently, please comment with any questions so that either me or some other reader can help you out.

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About the Author: A tech blogger, a Dentist by profession. Shares tips and news about the latest technology, and majorly on Apple and its products! .

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There Are 17 Brilliant Comments

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  1. Nosh says:

    Hey, thanks for the guide, but when am i supposed to insert my SIM card? P.S. My dad needs his iphone urgently, and I really need to get this done. thanks

  2. Chetan says:

    Nosh,

    When you install Ultrasn0w and reboot your iPhone, insert the SIM card and then go on with the reset of network settings. It will work then.

  3. rael says:

    I installed ultrasn0w and everything, but when I introduce the T-Mobile sim card the iphone 3g is stuck in “Searching…”. I resetted the cellular settings and everything but istill no luck… any help?

  4. alex says:

    please write big and fat in the headline that this is not for 3GS. I just updated my 3GS to 3.1 and then I read in the notes that this fix is not good for 3GS. So now I cant use my Iphone anymore!

  5. iboner says:

    yes i have the same problem as Raels

  6. Manuel says:

    hey
    i’ve problems with my iphone after installing ultrasn0w in cydia. it can’t find any network and there is a red dot on the phoneicon, before doing that it was able to connect to a network. I’ve done everything as it is discribed above. Please help me
    thank you

  7. Kevin says:

    I don’t understand the last 2 steps. I did everything according to the instructions. But after restoring it, it says “the sim card inserted does not seem to be supported…”. Wouldn’t restoring it put it back to original factory settings? That is what it says before I click on restoring it for the last step- “Now after the IPSW building process is done, you need to restore the firmware which you download by holding down the option key(in your mac, this is a tutorial for mac users!)”. Please help.

  8. Kevin says:

    Got it to jailbreak to 3.1. But couldn’t unlock it with 3.1 firmware. Has anyone successfully done it?

  9. Aman says:

    I did everything in the tutorial. Jailbreak was successful but ultrasn0w I downloaded and installed an then inserted sim no service at all or it keeps on searching I also did reset network settings and airplane mode on and off nothing happens I’m a tmobile carrier. It’s unable to load/list network carrier or w.e when I check carrier please help =(

  10. Ibrahim says:

    SAME PROBLEM AS RAEL’s

    please help me, I’ve trying to do this for 4dayz

  11. nxb807 says:

    i have a 3G currently running 3.0. I downloaded the NES app from Cydia the other day, and the app wasn’t working, so I went into Cydia to remove the app, and now ALL of my original iPhone apps/icons are gone – maps, settings, text, camera, photos, calendar, calculator, safari, phone, email, iPod, app store, you tube, stocks, weather, and the jailbreak apps for 3.0 (cydia & icy)…do not appear!

    to fix this i want to restore my phone with Itunes, but itunes says it will automatically install 3.1. IF I APPLY THE 3.1 FIRMWARE W/ ITUNES, can i still unlock with the steps you listed above?

  12. John says:

    Unable to load networks list !!!!
    I think its because the Modem Firmware is 5.x.x
    Now WHAT??? Use our phone as an itouch???? WTF?

  13. John says:

    I have an Iphone 3g it was unlocked/jailbreaked just fine with the 3.0
    Then i did he stupid thing to upgrade with pwnage 3.4.1 to 3.1 os and from then i cant do anything. It says unable to load network list, i have installed ultrasn0w ofcourse but it cannot operate.
    —-unable to load network list —-
    Its an Itouch now ??

  14. Gdude6064 says:

    I’m having the same problem as rael.

  15. Richu says:

    download Blackra1n RC3 from tis link
    http://www.blackra1n.com.           NEW Firmware 3.1.2 with baseband 05.11.07

    In the site you will picture of George Hotz, there will sign for windows and mac click on windows picture and Blackra1n will be downloaded to the computer. Now connect iPhone via USB run Blackra1n click “make it rain” wait it will automatically jailbreak George Hotz picture jailbreak is complete open iPhone one Blackra1n in second screen. Open “Snow” it will automatically unlock it very easy.[for the jailbreak to work  first time itself – “make it rain” when the screen gone blank hold both home button & power botton at the same time and when you see apple logo leave power botton hold on the home button until you see the George hotz.] 
        

    download Blackra1n RC3 from tis link
    http://www.blackra1n.com.           NEW Firmware 3.1.2 with baseband 05.11.07

    In the site you will picture of George Hotz, there will sign for windows and mac click on windows picture and Blackra1n will be downloaded to the computer. Now connect iPhone via USB run Blackra1n click “make it rain” wait it will automatically jailbreak George Hotz picture jailbreak is complete open iPhone one Blackra1n in second screen. Open “Snow” it will automatically unlock it very easy.[for the jailbreak to work  first time itself – “make it rain” when the screen gone blank hold both home button & power botton at the same time and when you see apple logo leave power botton hold on the home button until you see the George hotz.] 
        

  16. Richu says:

    It may not work first time keep on doing it may take several attempt. If it get stuck some where hold the power botton & power bottom until it reboot & do the gailbreak again.

  17. Dan says:

    Yeah so I used blackra1n to jailbreak my iPhone 3G with 3.1. Jailbreaking went fine but when I tried to unlock with ultasn0w and reset my network settings, turn on airplane mode, then turn it off I am still “Unable to load network list”. Where the connection bars are supposed to be it just says “No Service”. My T-Mobile SIM has been inserted the whole time, what should I do?

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