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Software Unlock your iPhone 3G 3.0 using Ultrasn0w – Quick and Easy! [Screenshots incl.]

23 June 2009 95 Comments

The Dev Team did it yet again! The cat and mouse game is on! All iPhone 3G owners (no matter what firmware you have) can now unlock their devices!

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Lets get started with a step by step guide (It will be a short one this time around!)

1) Update your iPhone 3G to 3.0 . You have two options here :

2) Now that you performed the Jailbreak steps necessary in Step 1, all you have to do is pop in your SIM card(be it T-Mobile or any other GSM carrier).

  • Turn WiFi ‘On’ on your iPhone 3G and connect to a Wireless Access point (WiFi). (Create an AdHoc WiFi Access point if there is no WiFi access)
  • Disable 3G on your iPhone if you are on an unsupported frequency (T-Mobile). Other carriers, try disabling and then enable once unlocked!

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  • Launch Cydia on your iPhone 3G and download the necessary upgrades if prompted and hit ‘Restart Springboard’ when done.

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  • Tap on ‘Manage’ at the bottom and choose ‘Sources’. Now hit the Edit button at the top right corner and now hit the Add button.

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  • Enter repo666.ultrasn0w.com when prompted with ‘Enter Cydia/APT URL’ dialog and hit the ‘Add Source’ button.

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  • Once it refreshes, return to Cydia and hit the ‘Done’ button and tap the top most entry shown.
  • Now tap Ultrasn0w -> choose the install button and Confirm. Now return to the main menu in Cydia.

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  • Restart your iPhone and boom, you should see your carrier signal!

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95 Comments »

  • iLikeMyiPhone said:

    You can jailbreak but not unlock unfortunately. Try 3.1 instead of 3.0. Look for newer post (3.1) on this site.

    # 7 October 2009 at 2:30 pm
  • street 1 said:

    Hi!! thanks for the help, i was able to jailbreak my iphone 3G 3.1 using you tutorial and it worked!!!
    my hope was to unlock it too, so i used used ultrasn0w via cydia, the new Tmobile sim seems to work but the WIFI wont work..

    # 10 October 2009 at 3:07 pm
  • Download Custom Firmware 3.1.2 – Jailbreak, Activate, Unlock iPhone 2G, 3G, 3GS [Mac and Windows] | iLikeMyiPhone said:

    […] 4) Give it few minutes to perform the restore. Once the iPhone is up and running, proceed for software Unlock using Cydia. Follow this guide to install Ultrasn0w to software unlock y… iPhone 2G is already unlocked with this custom […]

    # 13 October 2009 at 9:35 am
  • HELP said:

    I am currently using iphone 3gs 3.1.2
    and i have tried this method several times but it isnt working , all it does is keep searching for a long long time, afterwards it says "no signal"
    PLEASE HELP

    # 14 October 2009 at 3:39 pm
  • iLikeMyiPhone said:

    What is the baseband version (settings -> General -> About)?

    Did you turn 3G off, did you also reboot your iPhone?

    # 14 October 2009 at 3:49 pm
  • mithin said:

    I am using iPhone 3GS 3.1.2 and I just unlocked the phone using this method. I don't see any carrier signal. It just says searching…

    Here are some details that might help.
    Version 3.1.2(7D11)
    Modem FW 05.11.07
    Model MC131B

    Please help

    # 15 October 2009 at 3:05 pm
  • mithin said:

    Can you please tell me how can I get the phone working? Should I go back to 3.0 or something?

    # 15 October 2009 at 3:11 pm
  • mithin said:

    I did not understand what you mean by follow the links for 3.1.2 firmware. Can you please post some helpful links? Thanks a lot in advance

    # 15 October 2009 at 3:24 pm
  • iLikeMyiPhone said:

    http://ilikemyiphone.com/wordpress/2009/10/13/download-…

    # 15 October 2009 at 3:28 pm
  • George said:

    Hi Guys!! thank you so much for this post. I did the jailbrake using the not activated firmaware for an iphone 3gs. It worked just fine, but now i dont have 3g signal and it doesnt show the carrier name on the left upper corner. I can make calls, but thats it ¿Am I missing something? I already did the unlonck with ultrasn0w but it remains the same… I could use some tips…. Thx

    # 19 October 2009 at 7:17 am
  • iLikeMyiPhone said:

    Use 'Make it mine' from Cydia for the carrier. It is a known bug!

    # 19 October 2009 at 1:25 pm
  • Jasmeet said:

    I got a new iPhone 3GS with 3.1.2 firmware already on it. I haev been trying to unlock the same and used the exact procedure listed above but am unable to unlock the phone. There is no error at any step but the phone is not able to connect to my carrier when i put my SIM – it keeps saying "Searching…". Please help!

    # 26 October 2009 at 5:33 am
  • tom said:

    hi i use version 3.1.2(7D11) modem firmware 05.11.07 this iphone is lock with optus i need free software for unlock
    thank

    # 28 October 2009 at 5:22 am
  • tackleberry2219 said:

    I have a 2g iphone with os 3.1.2, modem software 04.05.04_g. This phone has been jailbroken and unlocked. Cydia is installed. Ultrasn0w is installed. But whenever I put my go phone sim chip in it says that a different sim detected and to connect to itunes… I have tried jailbreaking with redsnow 2 times now and still get the same problem. It worked before the upgrade to 3.1.2 but now can't get it to activate no matter what. If there is no sim installed it works great as an ipod touch, but really miss using it as my primary phone. So how do I hactivate it gophone sim chip?

    # 4 November 2009 at 5:02 am
  • motauaja said:

    Hi, I upgraded my iphone 3G to 3.1.2 using your custom fw
    (http://ilikemyiphone.com/wordpress/2009/10/13/download-…
    but I still can't unlock it with cydia following your above procedure. I've create adhoc wifi with my laptop and my iphone detected the wifi connection. but it couldn't connect to internet, both by browsing safari and cydia.
    can u help me? my baseband is 02.30.03

    # 1 December 2009 at 2:22 pm
  • motauaja said:

    Thanks for your reply. can u describe the step by step process of doing this and where to get Apple's official 3.0 firmware?

    # 2 December 2009 at 2:27 am
  • kkiran said:

    Look for official firmware links in downloads section…

    # 2 December 2009 at 2:34 am
  • motauaja said:

    Downloaded apple's official fw 3.0, then what should I do next? Can I just restore my iPhone using iTunes shift+restore with this fw 3.0? Thanks

    # 2 December 2009 at 3:18 am
  • iLikeMyiPhone said:

    Yes sir! Use shift restore…

    # 2 December 2009 at 3:22 am
  • motauaja said:

    Sorry, do I have to set my iPhone to recovery or DFU mode before restoring or just normal mode?

    # 2 December 2009 at 7:39 am
  • motauaja said:

    Done restoring to 3.0 n jailbreaking it. tomorrow will restore it to 3.1.2 will update it here. Thanks

    # 2 December 2009 at 11:57 am
  • Kiran said:

    Good job! Let me know if you need any more help!

    # 2 December 2009 at 9:11 am
  • motauaja said:

    restored and unlocked to 3.1.2. thanks guys for the help!

    # 2 December 2009 at 2:34 pm
  • iLikeMyiPhone said:

    Not a problem 🙂 You have fun now!

    # 2 December 2009 at 2:37 pm
  • Download Custom Firmware 3.1.3 IPSW – Jailbreak, Activate, Unlock iPhone 3G, 3GS [Mac + Windows] | iLikeMyiPhone said:

    […] 4) Give it few minutes to perform the restore. Once the iPhone is up and running, proceed for software Unlock using Cydia. Follow this guide to install Ultrasn0w (for 4.26.08 baseban… If you have 5.11.07 baseband, blacksn0w should be used for […]

    # 10 February 2010 at 9:53 am
  • Eddy said:

    Hi,

    I just follow the instruction and install the 3.1.2 firmware. It restart fine and I went ahead and installed the Ultrasn0w and follow the instruction. Now the phone shows "No Service" and I can't make any call. I noticed that my Version is been upgraded to 3.1.2 (7D11) but my Modem Firmware remains 02.28.00. Can anyone help me to resolve this problem?

    Thanks

    # 23 April 2010 at 11:58 pm
  • kkiran said:

    The baseband needs to be updated to 4.26 for ultrasn0w to work. Search for fuzzyband in Cydia to update baseband to 4.26.. It should work..

    # 25 April 2010 at 2:33 am
  • Dhaval said:

    i had restored my iphone 3G firmware 3.1.2 and i installed ultrasn0w but it tells searching….
    and when i go to carrier it says unable to load network list
    please help me out from this
    my sim card is not detected after the restore
    have windows XP
    im from india

    # 24 April 2010 at 11:21 am
  • kkiran said:

    What is the modem firmware version (baseband) found in settings? Is it 4.26.08 or 5.11.07?

    # 25 April 2010 at 2:35 am
  • Candice said:

    I have used ultrasn0w verson1.2 to unlock my 3G, v4.1. And my firmware version is 5.14. Somehow it still says "no service." I am in China. Help!

    # 14 December 2010 at 9:19 am

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