Step-by-Step Guide to Unlock iPhone 3G/iPhone 3GS running on iPhone OS 3.0/iPhone OS 3.0.1 using UltraSn0w

Unlock iPhone 3G using ultrasn0w

As you might already know, the iPhone Dev Team had released their much awaited software method called Ultrasn0w that can unlock iPhone 3G running iPhone OS 3.0 almost a week back.

Since the release of UltraSn0w, our readers have been asking us for a guide to unlock iPhone 3G or iPhone 3GS.

So here is our step-by-step guide to unlock iPhone 3G or iPhone 3GS using UltraSn0w so that you can use a SIM from any GSM carrier.

As with any hack, please proceed with caution as unlocking your iPhone could void it's warranty.

Before you begin the unlocking of your iPhone 3G or iPhone 3GS, please go through the following instructions:

1. You must have a jailbroken iPhone.

In case, you haven't jailbroken your iPhone then you can checkout our step by step guide to jailbreak iPhone 3G running iPhone OS 3.0 using Redsn0w for Windows users and this one for Mac users.

iPhone 3GS users can checkout our step by step guide to jailbreak iPhone 3G running iPhone OS 3.0 using Redsn0w for Windows users and this one for Mac users.

You can also checkout our step by step guide to jailbreak iPhone 3G running iPhone OS 3.0 using PwnageTool. PwnageTool offers more customization options to the users compared to the RedSn0w. However, it is available only for Mac users.

2. You must be on 04.26.08 baseband. You can check your baseband (modern firmware) under Settings > General > About > and read the Modem Firmware.
3. If you are on T-mobile then remember to turn off 3G before begining with the unlock

Now, following are the step-by-step instructions to unlock your iPhone 3G or iPhone 3GS running on iPhone OS 3.0 or iPhone OS 3.0.1:

Step 1: Launch the Cydia App from your iPhone springboard

Unlock iPhone 3G using ultrasn0w

Step 2: Press the Manage tab at the bottom of the Home-Cydia screen

Unlock iPhone 3G using ultrasn0w

Step 3: On the Manage section of Cydia, click on the second option named Sources.

Unlock iPhone 3G using ultrasn0w

Step 4: Now press the Edit button displayed on the top right corner of the screen.

Unlock iPhone 3G using ultrasn0w

Step 5: Press the Add button displayed on the top left corner of the screen

Unlock iPhone 3G using ultrasn0w

Step 6: The screen will display a text box where you have to enter the Cydia/APT URL.
Enter as the URL and press the Add Source button

Unlock iPhone 3G using ultrasn0w

Step 7: Once this is done, please press the Return to Cydia button

Unlock iPhone 3G using ultrasn0w

Step 8: Now, press the Done button displayed on the top right corner of the screen.

Unlock iPhone 3G using ultrasn0w

Step 9: Select the displayed under the heading Entered by User.

Unlock iPhone 3G using ultrasn0w

Step 10: Now, press to select ultrasn0w application displayed under the

Unlock iPhone 3G using ultrasn0w

Step 11: Press the Install button displayed on the top right corner of the screen.

Unlock iPhone 3G using ultrasn0w

Step 12: Then press the Confirm button displayed on the top right corner of the screen. This will install the application.

Unlock iPhone 3G using ultrasn0w

Step 13: Once completed, you will see the Reboot Device button. Press this button.

Unlock iPhone 3G using ultrasn0w

Step 14: You should now be able to insert any SIM card you want in your newly unlocked iPhone 3G or iPhone 3GS!


Thanks to feedback from our wonderful readers this post has been updated with the following changes:

  • To confirm that it can unlock iPhone 3GS.
  • To confirm that it can unlock iPhone OS 3.0.1.
  • The new version of UltraSn0w has made things a little easier, so removed the steps that had become redundant and was causing some confusion.

Do let us know if you found this helpful and as always, please don't forget to drop us a line in the comments below to tell us how it goes.

[via iClarified]

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  • Nik

    are these steps helpful to unlock 2g phones also?

  • grugru


  • Vin

    Did any one had any problem of battery charge running down like hell…

  • rene

    Ive had an issue where when i install apps that need rebooting then my phone freezes and i have to restore and unlock again, anyone else having the same issue?

  • Twigg

    2G iPhones are unlocked via Bootneuter. It's a permanant unlock that worms regardless of the baseband.

  • hoi,

    i have modem firmware 02.28.00 on my jailbroken G3 2.2.1.
    how can i upgrade the firmware to 04.26.08 baseband??


  • Dim

    A+++ This software unlock worked fine for me on my iphone 3G v3.0 jailbroken, thanks dev team

  • Dracul

    Dracul says…

    Works well. Remember to change the extension on the firmware file from *.zip to *.ipsw

  • I have been trying for 6 hours now of “waiting for reboot” i am running windows XP iphone 3g 2.2.1 now finaly got it working
    Reboot ya pc in to safe mode (F8 on start) then try red snown etc all good for me let itunes update SW first then do the shift restore ( to the one you download iPhone OS 3.0 – iPhone1,23.07A341_Restore)

  • ifonix


  • Underwater Mike

    My phone is neither jailbroken nor unlocked, but I've had the issue ever since upgrading to 3.0. I think there's a bug in there.

  • Yalın Caglar

    Worked perfectly for me with turkcell carrier..i saw of the the guys saying charge is running so quickly..i have the same problem since i installed 3.0…anyone have a idea about it?

  • wraithdu

    What's with the funky method of turning the iPhone back on after the ultrasn0w install, specifically point iv about holding the Home button? I've never seen that procedure suggested on any site anywhere in regards to ultrasn0w. It sounds like half-way to DFU…

  • M.Baker

    I can't believe this worked 4 me …you guys are the Mutts Nutts! Thanks:)

  • Jerehh

    it works well for me, mine's running with t-mobile sim card. but i still can't download songs to my iphone..the itunes requires me to have the at&t sim card. any tips for me??

  • After I jail brake the phone I open Cydia and screen says " Unable to Load ( no internet connection)" then I push manage and then source and nothing is listed. Ther is no home page like the screen shot. I'm having trouble can anyone help?

  • Iphoneguy

    Turn wifi off to help with battery drain. I noticed a big difference by just doing that. Horrible batterylife with os 3.0

  • Waqas

    i still have no service message after doing all the procedure

  • Ian (Meteor Ireland)

    Iphone 3G, 2.2 1—Os 3 jailbroken with redsn0w, unlocked with ultrasn0w, no problems in general. Did freeze a few times when loading down apps that needed re booting etc, but seems to be fine now. One little thing if anyone has comment, original sms message icon does not display sms inside icon, and i can not get any funtion from the send button to reply to text received?? If any one has any ideas… thanks in advance..

  • Sovann

    Thank, the Hack is really work well with my Iphone 3G 3.0. I am not a pro IT, but it done. Thank, I do not need to spend anymore each time 20US$ for Phone Shop. Work Well.

  • Atif Mazhar

    Hi all, my name is Atif and I am from Dubai…… I have updated my iphone 3g to 3.0 and jailbreak with Redsn0w and unlock by ultrasn0w, now I ma able to use in Dubai as well as in the Pakistan……. Big thanks to Dave Team…. Keep it up Dave Team…………. Thanks a lot we are surviving because of you guys…. and step by step inst. are very helpfull for us as well…..

  • you rocks, guys!!!!!
    thanks a lot to dev-team.
    this is piece of art kn0wledge.

  • utakata

    i managed to unlock this phone and can use the phone using a vodafone sim.. but one BIG problem remains… I CAN'T get onto 3G/edge/etc. Wi fi is fine but when I try to go online, I get a message "You are not connected to a cellular data service".

    Can someone tell me what is wrong??

  • Abhi

    Thank you. Worked without a hitch!!

  • Sadie

    This was my first iphone hack – took me awhile, but it worked – thanks guys! For any other amateurs like me: it's not specified, but you have to set up your wifi connection before starting the unlock procedure. Hoping to save some one some time.

  • Sadie

    One more thing – redsn0w crashed on me during installation. If this happens and you're using Vista, right click on the redsnOw executable, choose properties, go to the compatabilities tab and select XP service pack 2 as the compatability mode.

  • Ken

    Direction is clear and work like a charm !!! Thanks for trillionsssssssss !!!!

  • wey

    Process went ok, but when I unlock it and reboot the iphone it says no simcard installed, and after few minutes signal from att went please.

  • Dallas Dave

    I have the same problem with my 2G iPhone running 3.0 os. I did notice my modem firmware is: 04.05.05_G Is this correct for a 2G iphone that has been upgraded to 3.0?

  • Dallas Dave

    I have the same problem as Utakata (above) ie: "You are not connected to a cellular data service", with my 2G iPhone running 3.0 os.

    I did notice my modem firmware is: 04.05.05_G Is this correct for a 2G iphone that has been upgraded to 3.0?

    I even tried Ultrasn0w on my 2G, still not working.

    Any help would be appreciated. Thanks, David

  • Andy Zhao

    itune 8.2 is needed. early version of itunes will not complete the 3.0 restore process.
    It worked for me on the first time, but somehow after jailbroken, my location is not working.
    After reading a lot of posts, I just decided to redo everything again, and now it works fine.

  • sense

    wow u Rock! Long Live hackers worldwide~

  • marion

    you need to make sure that the apps are compatible with 3.0 and that you do a hard reset, that helped me pretty much.

  • Alberto

    It works very well, thanks!
    I started using the jailbroken/unlock since version 2.1
    The only big problem with this update is the battery life, like others say , it's very bad
    It drains quickly and I have to charge 2 times to play and use the phone during the day
    I hope we can have a fix as quick as possible
    Thanks again

  • tam

    it took me 20 minutes to go thought these step and it works perfectly
    thank you

  • Grateful

    Just used purple rain on the mac, then ultrasnow. Itunes did say that that the phone contained the wrong sim, but stil seems to be sync. So far so good. thanks so much!!

  • Piukoo

    It doesn't work for Iphone 3G S

  • Piukoo

    When you turn on the phone at first time, you can receive 1 call, then after, you can't call and receive calls.

  • lily

    unlock iphone 3g 3.0

  • MnM

    jailbroke and unlocked on 3G w/3.0, worked like a champ – thanks.

  • dave

    works like a charm. did two phones in an hour. downloaded mms apps and phone forze but did a hard reset and redownloaded everything. wont be going back to that apps 🙂 thanks team

  • Olga

    Hi! I have a problem. I'm trying to unlock my jailbroken iphone 3g 3.0 When i try to add it says the following: "Did not find repository. The indicated repository could not be found. This could be because you are trying to add a legacy Installer repository (these are not supported). Also, this interface is only capable of working with exact repository URLs" and so on… I don't know what to do. I have 2 identical phones. I unlocked the first one with no problems. Help!!!

  • dave

    y is my phone not pickin up cellular network after a hard reset??

  • dave

    anybody out there can help

  • Alberto

    I found out that putting iPhone in recovery mode gives a very good battery life
    I had to reinstall everything again but it worth it
    i tried this 3 times so i know it works
    i just wanted to let the people that has battery issues to try this

  • Neo

    worked like a charm

  • JAshworth03

    I attempted to jailbreak and unlock my phone last night. I decided to use windows vs. my macbook. I was able to jailbreak the phone without any problem. I used my roommates ATT sim card to upgrade it to 3.0 then removed it as i don’t have ATT. Cydia installed and did its thing. When I went to download ultrasn0w via cydia. It came up and asked if I wanted to connect to the internet via wifi. I did so I connected. When I tried to add the repo666 repository it came up and said no directory found. I powered down and rebooted the phone. this time when i opened up cydia it kept coming up saying no internet connection. i got out of cydia and tried safari via wifi with no success. no it won’t recognize wifi at all on my iphone. Even worse when i open cydia and click on the sources tap it kicks me out of cydia. How should i proceed? Do I have to have an ATT simcard in the phone to jailbreak and unlock? I am assuming I’m going to have to re-jailbreak. How do i do this. I used redsnow .072…. Any help would be great!


    Can any one help , I successfully unlock my 3g iphone using red snow and after installing the cydia on my iphone . I was noticed that instead of showing 0.6 its showing 0.8.(ultrasn0w) and my iphone showing no service when i ahve inseted my tmobile sim card.

  • dan

    thx that's work great……

  • ricky

    your a idiot

  • Sadie

    It's not nice to call some one an idiot, especially with such poor grammar – I think you meant "You're an idiot."

  • raymondleeus

    It would be good also to mention when to release (stop) pressing the HOME button after iPhone is in DFU mode.

  • devilme

    try to ask from vodafone its setting for 3G

  • Diane

    WOW! I jailbroke n unlock my own iphone 3gS thanks to u guys i did it with no errors! My phone works jus like it was never jailbroken or unlocked!! Thanks a bunch guys!!!!

  • JD

    I have a MacBook Pro, previous 2G iPhone, and am in Azerbaijan….it took less than 30 min. following the steps, but you need Firefox. It works! Thanks!!!!!

  • Mark


  • jack brown

    ive jailbreaked my iphone 3G 3.0 and unlocked it and now it has no signal becuase i tryed to restore it again and now i have no signal at all can some one help mee !!!!

  • Ultrasn0w is now updated to 0.9. Should iPhone 3g users update to the latest ultrasn0w?

  • If the older version is working fine then it is not required. But there is no issue upgrading to the new version as well.

  • shandor

    Thank you very much guys, worked like a dream.

  • sham

    i have the same problem. try using pwnage tool to jb & ultrasn0w to ul. it worked for me. hope this helps.

  • sham

    pwnage to jb & ultrasn0w to ul, fantastic! one question though, hw come i cant attach pics & stuff in sms & no mms either. is there a workaround? pls advice from Singapore.

  • mugo

    Data connection problem: I jailbroke (redsnow) and unlocked (ultrasnow) my 3G iphone (OS 3.0) and everything works fine but the internet with "cheap" data plan (media something $15/mo). I have an ATT sim (white and blue). I got the "cheap" data plan with my other phone (not iphone). When I put the sim in the iphone, it doesn't work. Am I missing something? Help please

  • rtree

    Thanks guys!.It worked perfectly on 3GS on softbank in japan. I used purplera1n for jailbreaking and ultrasn0w for unlocking. No errors on call, although I haven't confirmed 3G data.

  • Mister W

    Thank you very much

  • Jess


    I've unlocked my iphone 3g according to the steps given above, but i'm having network issues. People have difficulty getting through to my phone as it comes as 'Unreachable'.
    I have no problems in making phone calls or sending text messages but in recieving calls and text messages.

    IPhone 3G details:
    Firmware: 4.26.08
    OS: 3.0

    Please email me if you guys have any solutions.

    Thank you.

  • Try upgrading to the latest version of UltraSn0w via Cydia to see if solves the issue.

  • flrockytop

    Does anyone have an answer to this one. Thanks

  • I replied to wrong post above. Does anyone have answer to question by mugo. Thanks

  • sham

    got the answer. its network dependable, u need ur telco to send you the mms settings for iphone. afterwhich, problem solved. hope this helps everyone having the same problem as i did. cheers!

  • Damian

    Is it possible to update a 2g iphone with this software carrying out the steps outlined above?

  • I currently use a turbo sim with my unlock iphone 3g. Will I still need to turbo sim after this hack or can I just use my normal tmobile sim card? Thanks in advance.

  • Bharat

    Hey devilme … same prob here…Not able to open Cydia and screen says " Unable to Load ( no internet connection)"..
    Have chkd wi-fi connectn… It's wrkin fine….Have tried jailbreak procedure again….but no sim netwrk and no wi-fi connectivity.
    Hence not able to perform unlock steps..
    Help appreciated.
    Thnx in Advance.

  • Bharat

    Thnx Guys!!
    But M Not able to open Cydia and screen says " Unable to Load ( no internet connection)"..
    Have chkd wi-fi connectn… It's wrkin fine….Have tried jailbreak procedure again….but no sim netwrk and no wi-fi connectivity.
    Hence not able to perform unlock steps..
    Plz let me kno d solutn for dis prob.
    Thnx in Advance!!

  • Using the above procedure, I have unlocked my 3G, and can make calls OK. However, incoming calls are responded to by my Voicemail message! Have repeated the process, and have reloaded ultrasn0w in Cydia. I have also keyed in *5005*86*xxx# where “xxx” is my voicemail retrieval number to bind the voicemail retrieval button to the Voicemail number.
    My SIM card works perfectly in a standard Nokia, with calls coming in normally. Placing the SIM back into the iPhone seems to auto-initiate a Voicemail block on calls.
    Any help out there, please for a normally nerdish 70-year-old?

  • mgctc

    All fixed! Reinstalled Ultrasn0w. RTFM!

  • Mightyjobu

    after the jailbreak and unlock … Is it ok to sync with itunes? Just checking.

  • vgnam2404

    Me too! It works great on my iPhone 3G.


    can u please tell me if u use the same way to of unlocking the 3G or is it a different method,can u also tell me if u used redsn0w or purplera1n. irelly appreciate it,did u face any lack on the battery charge ,did it freeze as well ???

  • renu

    thank you so much! it was a bit slow and i got scared but it worked a treat! thank you, my Iphone is now jailbroken and unlocked! and tested 🙂

  • Michel

    Like Tina Turner said …. Your simply the best.
    I live in Japan and bought via a friend an Iphone 3GS with a AT&T sim card. I went on to your website, I must admit I have some computer knowlege so its a bit easier for me. I followed your exact instruction step by step and downloaded jailbrack Cydia then downloaded ultrasn0w to unlock it.
    I just tested it and My Japanese sim card from NTT Docomo, my French sim card from France Telecom Orange, my Romanian sim card from Orange and my Japanese sim card from Softbank ALL WORK PERFECTLY.
    Thanks a million guys, great job.

  • Tony

    Does this unlock work for 3G S

  • Yes it does.

  • Manny

    Thanks guys. I did the update from 2.2 to 3.0 on my iphone 3g, followed your instructions, and it is working perfect.
    I use T-Mobile as my carrier, not problems so far.
    Great instructions.

  • kim

    help pls

    can i know which unlock and jill break is great for iphone 3gs from malaysia.. it tht stable?

  • vic_tech

    whats up guys, i got a question.

  • vic_tech


  • Yeah you should be able to use any GSM carrier.

  • mike

    After installing ultrasnow, the button on the bottom says "reboot device" instead of "return to cydia", therefore not allowing me to do step 14. I'm running jailbroken 3gs 16gb iphone. Is this something new? Or did something go wrong? I haven't tried to use a different sim yet, as I havent left the country yet.


  • You can tap on the reboot button.Â

  • kevin

    I need help please. My iphone 3g and have v3.0.1. I have follow jailbroken v0.8 & v3.0 and unlocked(ultrasn0w) but after I installed tmobile sim. my phone showing no service.

  • christian

    3g should be disabled b4 using ultrasnow for tmobile

  • I downloaded a program the phone rebooted and it is frozen on the apple sign. please help

  • You can follow these steps to put your iPhone in DFU mode (this is required
    only if iTunes does not recognize your iPhone):

    – Connect your iPhone to your computer.
    – Turn iPhone off.
    – Hold power and home together for 10 seconds (exactly).
    – Release power but keep holding home until the computers beeps (observed
    on a PC) as a USB device is recognized.
    – A few seconds later iTunes should detect your iPhone.

    And try to follow the process from scratch.

  • Abu-Qasem

    thanks for the helpful tutorial

    i'm bought my New IPhone 3GS from japan

    i did all the steps and it seems that it's working well

    but yet i didn't try any other SIM cards,,


  • Abu-Qasem

    except that for the last step there is a new version of ultrasn0w that show a button of rebooting
    not going back to Cydia,

  • every time i enter on the add source screen it tells me that it didnt find the repository and that is because it is a legasy installer and that it is not supported what do i do

  • Use with the forward slash at the end.

  • it still says the same thing

  • one question though is the same as the do the same thing right or r they diffrent and whats the diffrence between them. thanx

  • Uday

    Worked like a charm. However with the as of today (08/13/2009), after you install ultrasn0w, you get "Reboot Device" button instead of the "Return to Cydia" button.


  • Louis

    Thanks for the fix and the great manual too!

  • oohh my God first i have to thank almighty Allah who give me opportunity, advantageous chance to buy iphone and to the owners of this website.. first i was trying to install software from cydia called installous i hv successfully installed but when i restart my iphone it hooks and display only apple logo and stop then i no option other than to restore it and i have successfully jailbreaked and unlocked my iphone and restored my backup now its working like b4 just that my applications i hv to reinstall again…by following the steps in this tutorials you can achieved it…

  • AK Merc

    Help, no internet with sim card, wifi works fine, phone works fine. Any help?

  • Krish

    Thanks frind. it was an easy guide and I could perform the upgrade and give a new life to my iphone without any hassle. Thanks a lot. Krish

  • Sadat

    everything worked fine as far as i can see but when i go to put my vodafone sim in.

    Settings> General> About> Network> Phone not allowed.

    what does this mean,it is showing no reception and i cannot make any calls.

  • Jr_respect

    I tried to unlock my Jailbroken iPhone 3GS – 3.0.1 with Ultrasn0w and it did not work properly. After i install the Ultrasn0w and restart the iPhone it just show the Apple and then it turn back off. i had to restore to its factory settings again with Itunes.

  • So I got my iphone couple days ago and I tried to jailbreak it with redsn0w today.
    But when I was putting the URL for the new package to
    unlock the iphone 3Gs (on OS 3.0), well, I am getting this message after it shows "VERIFYING URL" message and then this message popped up;

    Did not Find Repository
    The indicated repository could not be found. This could be because you are trying to add
    a legacy Installer repository (these are not supported). Also, this interface is only capable
    of working with exact repository URLs. If you host a repository and are having issues please
    contact the author of Cydia with any questions you have.

    So, how should I add this URL to Cydia smoothly ?

    I will be appreciated and look forward to hear from you about my this issue.

    thank you.

  • I have the same problem…did you figure it out how to solve it ?? I was spending almost my whole day and didn't make it work 🙁 I don't know why…

  • I have the same problem…did you figure it out how to solve and make it work ??

  • Patel

    Done !!!
    Thank you so much !!!
    For This Post

  • CK

    Help! All has gone well to this point. After entering the url: I get several error messages. At the point it says completed it says Sub-process bzip2 returned an error code(2). Any ideas?

  • CK

    Now the next screen has;
    NetDB: Open nodename nor servname provided, or not known.

    Has now made it through. Had so close cydia a couple of times and even had to turn the phone off a couple of time. Stayed persistent and it worked.

    Thank you!!

  • pot2

    i tried to unlock my iphone 3g os 3.0.1.. but i still cannot put other sim card.. can i know why?
    thank you so much

  • pot2

    and also, when i put the t-mobile sim card.. the iphone tells me to connect to itune.. but it still the same… plsss help me.. thxx

  • this is SICK u guys are the best
    thanks alotttt

  • Rick

    you guys are absolute LEGENDS!!!!!!

  • Faisal Hassan

    Hi. I am in Dubai and I just unlocked my 3G S using ultrasn0w.I am using 3.01 firmware. My carrier is Etislat. The strangest problem i am having is i can receive calls and sms but cannot make any calls or send sms.Data roaming is also working. Whats baffling me is if i put in my wife's sim card it works perfect.The phone was bought from Rogers Canada.I have even replaced my Etisalat sim card. Still the same problem.Any thoughts.
    BTW great job on the easy instructions.

  • sam

    tnx a lot

  • Malia

    I have the same problem, did it ever get fixed?

  • Vanner

    Is the ultrasn0w website down? I get the error invalid repository. I am unable to continue because cydia won't allow me to add the source. Claiming invalid repository! How now? I have the phone jailbroken but no service! iphone 3g

  • vanner

    Sorry I meant to say repository not found. And yes I am quite certain I am typing in the URL correctly(with the 0 in sn0w numeric). Everything else was perfect till this point. ANy help?

  • John

    The best!!! Thanks soooo much guys!! iPhone 3GS w/ v.3.0

  • It was working very well but something loaded on I-Tunes and its blocked it again.I try same procedures but don't work.And when I open I-Tunes it says Sim Card don;t suported.Please let me know any one can help.

  • iphoneFreeek

    works like a charm for iphone 3gs 3.0.1

  • AllumsDM

    it worked without glitched! Thanks everyone!!! I have iPhone 3Gs ver 3.0.1 (7A400) jailbroken using redsnow 0.8, now UNLOCKED!

    question… how to lock it again 🙂 just in case i need to return it back to my carrier??? Restore???

    Thanks Guys!


    can some1 help me please

  • Robin

    If you just bought an iPhone 3GS, it already comes with firmware 3.0, so need to restore with iTunes. Although you need to download the firmware for the jailbreak. this will work and is not hard at all.


    Its not worrrkinnnnnnnnnnnnnn,,,;( i upgraded my iphone to 3.1 🙁 i dont know how does happend!!!!i have Firmware 5.11 and i cant downgrade it!!! any help ???????? ???

  • Dwarak

    Guys i unlocked my iphone 2G as mentioned above i used cydia and unlocked it and the iphone also rebooted and then in the sim services it also present, in the settings there is a carrier option it says automatic ….And also airtel srvices are present but i cant make any calls or send msg from it pls do help me more over i dont know the iphone is 2G or 3G pls also help for this…………
    Thanks in advance

  • Gaurav

    Worked beautifully for me… and saved me over a $100. Keep up the good work!

  • U guys r the shit!! luckily i didnt upgrade to 3.1!! Did jailbreak with PwnageTool 3.1.3 on my 3GS and unlock worked great!

  • Ilan

    Thanks! Worked wonderfully on my iPhone 3g 3.1!!!!! I recommend downloading aptbackup from cydia if you format your iphone!

  • steve

    hi im from the uk and i was thinking of buying an iphone from the states, if i did this and used the unlock hack would it take a uk o2 sim card? and would the phone work normally in the uk

  • niko

    is there a way to install ultrasn0w in cydia without a wifi or an internet connection???

  • stephen

    im tring to get boost mobile sim card to work on 3g unlocked per these instructions att card works but boost no whats up

  • ifonix

    thanx guy's work also with 3.1.2


  • I have the same problem can anyone explain why it is even like that with the ATT sim card.

  • thanks! it works now, after initial problems with network (No Service showing). After having unlocked the phone it worked again.

  • khouch

    thanks for the hardwork..

    I had a problem with receiving call after jailbroken and unlocked my iphone 3G 3.0.1. Can you give us some solution as now i'm using Mobitel carrier in Cambodia but bared in receiving call.

  • Neil

    thanks a lot guys , you guys simply ROCK""
    i had tried earlier to unlock my iphone 3g but was unsucessful in doing so , you guys really made my day
    cn,t stop smiling 🙂
    and a happy new year

  • spikepr

    I found the fix to your problem here, is simple the problem is on the the configuration of the VNP. . I hope i could help you.

  • ej

    while jailbreaking the iphone 3g, will all of my files/ data's will be erased? thanks!!

  • Mani


    I have followed all the above steps to unlock my iphone 3GS and everything went well. but when I reboot it, it is not working at all. It is displaying graphic that instructs me to connect it to the iTunes and when I did that – iTunes asks me to restore it ! what should I do now? should I restore it? Will it upgrade the firmware to 3.1.3 as well? Please suggest a solution…

  • Box

    Did you install any jailbroken apps because I installed a few and the same thing happened to me. After charging the phone all night it ran out of juice in 5 mins or so. Solution = Delete the downloaded apps. Now it's back to normal.

  • akaraungoo

    thank for your application

  • Chris Stevens

    WOW and I was going to pay 30 dollars to do this jailbreak and unlock…go figure….I just don't understand how to use the whole cydia thing yet and how it works and how to have my 3g not 3gs jailbroken and unlocked but also updated to the newest 3.1.? whatever the newest is…I have the nexus one and love the andriod plat. and cant wait to be able to do the dual boot on the 3g…thanks to everyone that has put thier time and energy into this to make it free and step by step

  • alan

    wery helpful, thank you guys. I just unlocked my I phone 3G 16GB with 3.1.3. Is there a way to unlock it if I upgrade to OS4?

  • azii

    my iphone goes on cable mode when ever i turn off then i have to jailbreak i wana remove cable mode so iphone turn on without connecting itunes
    iphone 3gs with 3.1.2
    firmware 5.11.07

  • maestro

    i have tried it several time but it dosen’t work on 4.3.2 3gs. no service
    Any help please?