Ultimate Guide to Unlock iPhone 3G 2.2 (Firmware 2.2) with Yellowsn0w

Unlock iPhone 3G Firmware 2.2

iPhone dev team finally released one of most awaited tool, yellowsn0w. Yellowsn0w is first software unlock tool for iPhone 3G firmware 2.2. The wait for release of Yellowsn0w was quite long one as dev team failed to release on New Year’s Eve but the work done by dev-team is really appreciative. read how to download yellowsn0w.

iPhone Dev team managed to crack latest iPhone 3G baseband 02.28.00 and its surprising that yellowsn0w will now only work with iPhone 3G Firmware 2.2 Baseband 02.28.00 which is contradictory to their prior Message .Their is no news from Dev-Team about making Yellowsn0w to work with Baseband 02.11.07. Many users are facing issue while Unlocking iPhone 3G 2.2 with Yellowsn0w.

Here are answers to all your iPhone 3G Unlocking related questions. We are representing this as a Guide to Unlock iPhone 3G.

Ultimate Guide To Unlock iPhone 3G Firmware 2.2

1. How to Install Yellowsn0w from Cydia

A. Launch Cydia

B. You should see Two Options Packages and Source.

C. Go to Packages -> Edit -> Add & Enter http://apt9.yellowsn0w.com/ URL as a repository URL.

D. Now Go back to Your Cydia Sources menu and you should see the yellowsn0w package!

Screenshots of Yellowsn0w

How to Add URL to iPhone 3G Cydia

Yellowsn0w

2. How to Unlock iPhone 3G Firmware 2.2 with Baseband 02.11.07

A. Download latest iPhone 3G Firmware 2.2 from Apple.

B. Use iTunes to Upgrade Your iPhone 3G 2.1 to 2.2.

C. Download QuickPWN 2.2 and Jailbreak your iPhone 3G 2.2 to Install Cydia and Installer.

D. Follow How to Install Yellowsn0w from Cydia Instructions.

E. Run Yellowsn0w

F. Turn off the iPhone and install your third party SIM.

G. Turn on the phone. Wait until your iPhone 3G carrier pops up. If it doesn’t, take the SIM out and reinstall it.

3. How to Unlock iPhone 3G Firmware 2.2 with Baseband 02.28.0

A. You need to have Jailbroken iPhone 3G Firmware 2.2

B. Download QuickPWN 2.2 and Jailbreak your iPhone 3G 2.2 to Install Cydia and Installer.

C. After Jailbreaking iPhone 3G Firmware 2.2 follow Instruction of How to Install Yellowsn0w from Cydia

D. Run Yellowsn0w

E. Turn off the iPhone and install your third party SIM.

F. Turn on the phone. Wait until your iPhone 3G carrier pops up. If it doesn’t, take the SIM out and reinstall it.

4. How to Unlock iPhone 3G Firmware 2.1 with Baseband 02.27

Yellowsn0w won’t work on 2.1 because it has baseband 02.27. DevTeam has restricted it to 02.28 baseband so you must jailbreak and update to iPhone 3G firmware 2.2 in order to use this unlock.

5. How to Upgrade iPhone 3G 2.2 Baseband 02.11.07 to iPhone 3G 2.2 Baseband 02.28.0

Well there is no way which lets you to upgrade only baseband of your 3G iPhone. You need to restore your iPhone 3G Firmware 2.2 to Firmware 2.1 and then again upgrade your iPhone 3G to Firmware 2.2 using iTunes. please keep in mind while upgrading/downgrading iPhone Firmware you will lose all your apps, settings etc.

Important Note:

1. Yellowsn0w is still in beta so use it at your own risk

2. Yellowsn0w is for non commercial use

3. Yellowsn0w many or many not work for you.

We will be updating this guide as an when we get any other information. If you find any issue with this guide then feel free to comment here.

We will not be responsible for any damage which can occur to your iPhone using this Guide.

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63 thoughts on “Ultimate Guide to Unlock iPhone 3G 2.2 (Firmware 2.2) with Yellowsn0w”

  1. I have 3g 16g white I used QuickPwn 2.2 and Yellowsnow
    i unlock my phone now i use tmoble
    Thanks iPhone dev team.

  2. I live in saudi arabia and i am using ALJAWAL SIM Card i did as the guide says but its not working for me. Need more help pls

    PS: My Firmware is Firmware 2.2 Baseband 02.28.0

  3. It worked for me after several attempts, but then once I turned my iPhone off and then back on again I had no signal.

    I have redone the process a couple more times and everything seems to be OK now, just be persistent or wait for an update of yellowsn0w :D

  4. I have done it a lot of times but it still doesnt work
    for me it says “NO SIM” need more help pls

  5. It Works my iphone 16gb black was unblocked succesfully and its operational sorry my english i’m venezuelan.., digitel, and movistar works in my iphone

    excelent tool

  6. …yeah… how do i run yellowsn0w? It says in the ultimate guide to run it after installing it but there doesn’t seem to be anything allowing it to run.
    Anyway, I’m in Australia locked on with Optus. Installed the yellowSn0w, rebooted a few times, reinstalled it a few times but no success – the network lock stays on.
    Seems to me that more work is needed with yellowSn0w to be generally usable. If anyone knows of any step or trick to follow please let us know. Looks like most of the comments are about failed attempts.

  7. Tried 2nite again with the new version 0.9.6 and it worked.
    Fantastic. Thank you DevTeam – you are champions.

    Interesting thing though. Out of my own interest I uninstalled the YellowSn0w after the unlocking has succeeded and the SIM card would not be recognised.
    Went to preferences/general/about to see the info and it was showing in Carrier: Carrier 29 instead of previous Optus 29. However it would not find the other network.
    After that I went back to Cydia and reinstalled the YellowSn0w and the network came back.
    So as I understand it, it sort of hijacks the execution when network lock check is called in the iPhone and fakes the returned results – right?
    If so, does it mean that Apple can release a firmware update and the YellowSn0w would stop functioning hence the lock would come back?

  8. hey guys i try to jailbreak my 2.2 3g useing windows and i follow all guidlines and every thing want ok and it said the pwn has been success wait for iphone to be boot i wait for about 2hrs and it did not bring the home sreen,can someone help guys pls

  9. Hey everyone
    i use ALJAWAL SIM Card i followed instrustion many times but its’nt workin . PLEAAAAAAAAAse help

    My Iphone is 3G Firmware 2.2 Baseband 02.28.0 .

    Regards.

  10. hey u guys r rockin… my i phone 3g is unlocked and i am able to use any sim…. thanks to dev team…… no crashes so far…. network is good…

  11. Hey Guys,

    I have Tmobile US and i pick service up for like 10 min then drop again??? i read on some forums that you can go into a phone terminal thing i DL’d from cydia and type in yellowsn0w -h and stuff…anyone know more??? it seems to be a command propmt fro your phone.

  12. I Jailbreaked 3G iphone 2.2 firmware (restore from iTunes) with QuickPwn22. The original iphone was new not activated “out of the box” with 2.1 firmware.

    When I started the unlocking, Cydia is launched there is a “Network Error”, “Unable to load, No internet connection.” I used a secured Wi-Fi with password. The iphone recognized the Wi-Fi. I have access to the internet with a loptop through this Wi-Fi.

    In Cydia I used Manage>Sources>Edit>Add>http://apt9.yellowsn0w.com>Add source Message “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 URL’s. If you host a repository and are having issues please contact the author of Cydia with any questions you have.”

    I have no idea what any of this means.

    Please ADVISE!! Thank you in advance for your cooperation.

  13. The secret to all your questions lies on your sim card. If you have a old AT&T card which came with the iPhone with no sim lock . Do all the steps then insert the AT&T card. It will search then no service will pop up, when that appears sucess. Take out the sim then just insert any sim at all what la a unlocked iPhone 3g at your disposal. Thx devteam you guys are the best. What can we do with out your hard working guys.(make sure sim has no pin lock very very important)

  14. THANX DUDE !!! I installed bossprefs and yellowsnow bossprefs, and it did not work. Then I found your post and realised that you actually have to install 3 apps not just the two. Install and update bossprefs, bossprefs yellowsnow and then add the source above and install yellowsnow. Make sure that you have disabled PIN code !!! (it will not work unless you disable it) reboot the phone without the SIM, and now insert your 3rd party sim.

    Boom ! This worked for me.

    I am on Netcom Norway, iPhone 3G firm. 2.2

  15. In Cydia I used Manage>Sources>Edit>Add>http://apt9.yellowsn0w.com>Add source Message “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 URL’s. If you host a repository and are having issues please contact the author of Cydia with any questions you have.”

    In Cydia I used Manage>Sources>Edit>Add>http://apt9.yellowsn0w.com>Add source Message “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 URL’s. If you host a repository and are having issues please contact the author of Cydia with any questions you have.”

  16. Hi all

    I just need to understand what I am meant to be doing.
    My iphone is a 3G Firmware 2.2 with Baseband 02.11.07.
    It uses a piggy back sim currently.

    I’ve been told not to download anything from Itunes, as I could end up locking my phone, ok so the 1st step above says I need to A. Download latest iPhone 3G Firmware 2.2 from Apple. B. Use iTunes to Upgrade Your iPhone 3G 2.1 to 2.2.
    C. Download QuickPWN 2.2 and Jailbreak your iPhone 3G 2.2 to Install Cydia and Installer.

    Are these steps possible as if I upgrade doe sit not stop my iphone from conecting and therfore how can I download quickPWN,

    Sorry very confused

  17. I have 8g 3g black, I used 2.2 firmware and yellowsnow,and
    now working good on Tmoble now.

    thanks dev team

  18. I have 3g, 16gb iphone. I installed Cydia and Installer. I am in Panama with US iphone from AT&T. I have sim from movistar wireless company in Panama. When I press Cydia, I get message saying, “Unable to Load (no internet connection). I am on a wired internet connection at my hotel. Can anyone help me to unlock my iphone.

  19. aaahh, i got my hopes up after having tried everything but hardware hacks in order to get my California bought iPhone 3G work in the Cayman Island using a local “Cable & Wireless” SIM card (one out of 2 providers here).

    i do appreciate all the hard work people are putting into this, it’s an amazing community feeling, exchange and donations from people worldwide, and it’s beautiful to see. i will have to wait until yellowsn0w comes out of beta and simply hope for the best. i’ve only seen one guy with a iPhone 3G that works here, and he had his SIM unlocked by some jamaican dude (in Jamaica). BTW, worth mentioning, some local stores charge as much as CI$125 to unlock iPhones any generation around here, seriously capitalizing on non-technical people. but perhaps it’s fair, there’s obviously a market for it, and it does take a bit of time to grasp the concepts and learn the various methods.

    peace

  20. I had the 3G with 2.01 firware on it unlocked with a turbosim. I used a friend’s card to backup and upgrade the phone to 2.2 to find out that the old turbosim no longer worked. I jailbroke it with quickpwn 2.2 and then added the yellowsn0w source to Cydia and installed it. Popped in my Tmobile Sim card, rebooted and it worked perfect. Got a text as soon as it turned on and called a friend immediately. It didn’t take as long to find a signal either like it normally did with the turbosim. Thanks!!! Now, if they just come out with a version that I can get the 3G signal using Tmobile, I will be golden!

  21. Hi,
    I am using Iphone 3g , can any one mail me the guide to unlock. i am new to forum and have no idea. so if you can just send me the detail guide that will help me a lot.

    Thanks in Advance
    Sunil

  22. it’s work I doing stap by stap and everithing work great thenks a lott
    sorry for my english but I’m from macedonia :)

  23. hey guys I just unlocked my 2.28 3g Iphone, it seemed to work fine for the 10 first minutes, and after that it showed no service. when I turned it off it kept searching for signal for more than 10min, I have to turn it off again and turn it back on searched for signal and after a while it worked.
    It happens very often!!!and I have to go thgrough the same steps to get the signal back!!
    Do I have to jailbrake and install yellowsnow once again??
    responses would be very appreciated!!
    thannks

  24. I get this message all the time, why??

    “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 URL’s. If you host a repository and are having issues please contact the author of Cydia with any questions you have.”

  25. i have received the same message as “N” did and a few others for it cant find the repository when typing it in the source. any ideas what could be the problem?

  26. guys
    i got 3giphone from US.currently locked in AT$T…but now i am in uk and cannot used it,,i dont hav AT$T sim card..tried to unlock it ,but i cant tried with quick pawn,,but theres a red mesage saying firmware error string ,,what does that mean,,can anyone help plz….ive got 16gb whitewith firmware 2.2

  27. hi i got a 8gb 3 g iphone and im trying to unlock it to 3 is the anyone dat can help plz as i need it to work badly thanks in advanced

  28. hey guys does anyone know how to unlock iphone 3g..version:2.2.1(5H11)..baseband:2.30.3..
    thanks

  29. Used to be 3G 2.1 had to use 2.2 for Yellowsn0w
    I freaked out not knowing trick of “holding the shift command while clicking on restaure in Itunes” (allowing to chose the 2.2) It then started to update :-SSSS

    So Neos like me beware!

    Overwise so far so good works perfect…!!

    Thanks! brilliant job!

  30. I am not getting any links from the sites listed to download yellowsn0w. All that is present on the page is “yellowsn0w third generation”.
    Can you give a better referal? I even tried it from the Dev link and it is the same thing.

  31. hi my iphone has a baseband of 02.30.03 and i have a version of 2.2.1
    will quickpwn tool work?
    please someone reply me thank you

  32. Hi guys,
    I recently bought 3G iphone with 2.2.1 firmware and 02.30.03 modem it is locked to AT&T USA now i live in India can any tell how to unlock it. Please email me or add comment i ll appreciate that.
    Thanks 2 all in advance..

  33. Quickpwn tool worked for me on iphone 3g with version 2.2.1
    and 02.30.03 modem. but yellowsn0w didn’t unlock sim for me
    to use t-mobile sim. found out yellowsn0n only works on modem
    02.28.0. guess i have to downgrade modem to 02.28.0 to unlock
    sim. is there a file out there to do this?

  34. There is a application out called Fuzzyband that downgrades
    your baseband to 2.28 haven’t tried it yet but will later
    today.

  35. you can jailbreak. but you have to downgrade modem firmware
    to unlock sim. going to try later on tonight

  36. Help me please!!! When I try to add a source it says

    “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.”

    :(

  37. hi LITTLEP,
    you will have to use a program called “redsn0w” for a 3G 3.0 iphone to be jailbroken…then you use ultrasn0w to unlock..

    yellowsn0w only works with older iphones,

    just google for tutorials for your iphone version..
    if you need more help please email me dj69brisbane@gmail.com

  38. Voice Control features of the iPhone 3GS are definitely nice to have, considering that most other mobile phones, whether regular free phones or full-featured smart-phones, have had voice dialing for years, we’re not overly amazed that Apple finally managed to get these features in the iPhone 3GS, nor are we impressed by the implementation. Hopefully, Apple will expand upon Voice Over’s features over time and various third party developers will work Voice Control support into their applications. I was disappointed that I couldn’t simply say “Where am I?” to have my location plotted on the included Maps application.
    http://www.gizmos360.com/iphone-3gs.html

  39. I am not getting any links from the sites listed to download yellowsn0w. All that is present on the page is “yellowsn0w third generation”.
    Can you give a better referal? I even tried it from the Dev link and it is the same thing.

  40. Please help, I have unlocked iphone 3gs with 4.2.1. Installed cydia, ultrasnow and yellowsnow, sometimes it gets signal but it is not for long time..Please reply

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