Ultrasn0w iPhone 3g unlock

Author: BigBoss  //  Category: Jailbreak, News

Dev team has released Ultrasn0w, the iPhone 3g unlock. Here are the instructions and info from the dev team site.

Ultrasn0w for iPhone 3G is ready!

  1. Ensure you have upgraded to iPhone OS 3.0
  2. Jailbreak your iPhone 3G using redsn0w or PwnageTool (this will also install Cydia/Icy)
  3. Run Cydia or Icy
  4. Please add the repo repo666.ultrasn0w.com to Cydia or icy
  5. Search for ‘ultrasn0w’ in cydia or icy and install ultrasn0w
  6. Reboot your iPhone 3G
  7. T-Mobile USA users should disable 3G before using ultrasn0w
  8. Enjoy

No, this will not currently unlock 3gs as that cannot be jailbroken yet.

BigBoss Authors: Mark Bruce & Kory Lee

Tags: ,

131 Responses to “Ultrasn0w iPhone 3g unlock”

  1. Stef Says:

    great !!! thx a lot

  2. Stef Says:

    and it works fine !!!

  3. i101.hr Says:

    thumbs up dev team! :)

  4. bam Says:

    yeahhhh ultrasn0w rocks…. more power to dev team.. tnx alot.. :D
    now i can use my iphone as a phone,,, hehe before it was like an ipod..

  5. Pnut Says:

    I have AT&T and was wondering if I unlock, what would happen? If nothing then I would do it jsut to have it already unlocked.

    Is there any way the MMS feature would be available to me now if it is unlocked?

  6. DrYad3 Says:

    Hey BigBoss i need ur help please!

    AptBackup didn’t work for me. After Jailbreaking Ultrasn0w worked perfect for me. But i can not install anything else from cydia. Not even the essential cydia update. there is allways this code said:

    “Couldnt configure pre-depend dpkg for ncurses, probably a dependency cycle.”

    When i to install SBSettings it sais:

    “Couldnt configure pre-depend dpkg for grep, probably a dependency cycle.”

    What can i do?

  7. Harj Says:

    Rejailbreak but deselect icy, just run redsnow again no need to restore first. Happened to me too!!!

  8. Ruben Says:

    Sounds like you have made an jailbreak with cydia and icy together – that breaks cydia.

    You could rejailbreak with redsn0w 0.70 – google it or try the following

    Run icy
    Check in installed if Debian Packager is installed. If not you need to unstall th dependencies
    Install “Core Utilitiee /bin” and “Core utilities”
    Install if necessary OpenSSH.
    Search in icy for “grep” and install.
    Add source “apt.saurik.com/cydia-3.7/” manually
    Update sources
    Delte Original apt.saurik.com
    Now install all updates


  9. DrYad3 Says:

    Thank ya guys i will try!!

  10. ronal429 Says:

    i dont see icy on cydia, how can i add it ? i already jailbreak 3 iphone 3g running fw 3.0, thanks dev team

  11. DrK Says:

    ad the ripdev repo from cydia and look in changes u will find icy

  12. ronal429 Says:

    whats the ripdev repo ?

  13. Iblackdude Says:

    I have to say this : lol.

  14. phil Says:

    i need help…..
    i got the first iphone, now i got the newest version from appel, 3.0….now i won´t to restore it into 2.2 or lower like that, for unlocking. but it doesn´t work….via itunes, everytime it showes mistakes 1600….what shoud i do???

    thx for help^^

  15. treadstone Says:

    If I use the upgrade to 3.0 option in iTunes, what happens to all my jailbreak apps? Do they get lost in the ether or will they be waiting there for me after I use ultrasn0w to jb & unlock?

  16. ronal429 Says:

    yes they will be there waiting for you

  17. ronal429 Says:

    if you update your 2g iphone to fw 3.0 with itunes 8.2 you should have not problem jailbreaking it and unlocking it using redsn0w and ultrasn0w

  18. Martouf Says:

    No MMS will only be availible when AT&T adds it to your plan.

  19. Skyrie Says:

    Superb job dev team! The unlock works like a charm, tnx so much for all your hard work, the wait really paid off… God bless to you all! And more power

  20. phil Says:

    can you give me a link where i download redsnow or ultrasnow…..what should i do after this???


  21. lutz Says:

    Folks, nice job from the DEV Team. It’s working with the German Simyo.
    Easy Upgrade and Installation.
    I worked with the Rebelsim v73 before.
    Now my 3G works even with UMTS.
    Thanks Folks.
    Best regards from Germany.

  22. simone sez Says:

    What happens to my baseband firmware ver. 2.28.00 if I upgrade to 3.0 via itunes?

  23. Beyondregion1 Says:

    It will be updated to the new version, which is 04.26.08. This is the baseband you will need in order to utilize the ultrasn0w unlock. Basically, yellowsn0w is history.

  24. Beyondregion1 Says:

    Yes, you’re right. But not all of them will be completely compatible with 3.0 firmware. But the developers are making that happen.

  25. Beyondregion1 Says:

    This should help you, ronal:

    1.) Go into Cydia
    2.) Select the Sections button at the bottom
    3.) Move down the Sections until you come to the Repositories
    4.) Look for this Repository: RiPDev
    5.) Select it
    6.) Install it
    7.) Select the Changes button at the bottom
    8.) You should see Icy as a new package
    9.) Select it and install it


  26. dcarr Says:

    It gets updated to 4.28

    ultrasn0w only works on that baseband. Use the new redsnow or pwnage tool to jailbreak your 3.0 phone, and use ultrasn0w to unlock. It only works on the 4.28 bb

  27. Glenn Horsley Says:

    Is there going to be a QuickPwn for windows. If not what should I use instead? Are there any guides for windows jailbreak to 3.0?

  28. DrYad3 Says:

    Hey any1 an idea how i can free up space of my System hdd? I think there is more used spacee then i had with OS 2.2.

  29. Jessev Says:

    why can’t you read the damn article instead of asking someone to re-type it for you?

  30. Jessev Says:

    i had no idea so many blind people had iPhones

  31. Alexutzu Says:

    Can somebody help me?when i try to use red snow it ask me about the .ipsw.i have upgraded my iphone with itunes but i dont find that .ipsw.where can i findid?

  32. DrYad3 Says:

    u have to download it before and for example save it on desktop. then browse on desktop and select the downloaded OS 3.0 ispw.

  33. neededhelp Says:

    I have iphone 2g after upgrade to 3.0, i used redsn0w jb everything worked fine thi ony thing that does not work is get the internet can some one help me

  34. neededhelp Says:

    oh im on t-mobile

  35. Anonymous Says:

    Happened to me too. Restore your iPhone and configure it as a new phone DO NOT RESTORE FROM BACK UP then sync your phone. You lose you saved games and texts but that is a small price to pay for Internet. Hope it helps


  36. Yanz Says:

    just JB my iphoen 3g 3.0 with redsnow,everyting look ok. just confirming is the ant foults after jb?

  37. neededhelp Says:

    what pack did installed from cidia for tmobile?

  38. Yanz Says:

    cant install all sources for some reason

  39. Nick Says:

    I am in the same boat as Pnut…

    If I install ultrasn0w, can I still use my AT&T SIM? I don’t need the unlock forever, just while I travel abroad. I think I saw a yell0wsnow toggle in Cydia once that allowed you to turn your unlock on and off… is there something like this for ultrasn0w?

  40. Dan Says:

    Dear Team,
    Great JOB – the version 3.0 was restored and jailbreak was done. Now with Ultrasn0w all is working. Thank you all !!!!!!!!!!!!!!!!!!!

  41. Yanz Says:

    after JB iphone its laging, some apps dont work properly,in cydia apss dont work propaly to ,cant add sources,sux,going to restor to defolt

  42. hangsun Says:

    NICE, now waiting for SBSetting toggle for UltraSn0w

  43. D-SPARKA Says:

    Thank you iPhone world for all the hard work making the iPhone the best phone since the beginning. I’ve been patiently waiting for the 3.0 jailbreak and it’s worth it. PEACE! **special thanx to BigBoss and the Dev Team**

  44. Yanz Says:

    i got lags and faults :D lol. cydia crashes Pwncenter not working :( only good think i deleted Stocks app!!

  45. sjstorm Says:

    Dominican Republic, Reporting tha work Perfect, but we have tu turn off the 3G…

  46. Mojo Says:

    I’m having problems with SBSettings after JB w/ redsnow. Whenever I use the 3G toggle it says “No Service.” AT&T carrier.

  47. angel Says:

    Hello Guys,
    I have a iphone 1st generation, it was with version 2.2, i try to upgrade from Itunes, but it keep telling me cant activate the iphone cause it has the wrong sim card and stop there. Now what?, how can I bypass this?

    Please help.
    Now no service, no iphone :(

  48. angel Says:


  49. Snowball Says:

    I faced the problem that i have installed now redsnow but i get eveytime the errormessage :

    Couldn´t configure pre-depend dpkg for grep, probably a dependency cycle

    When i try to make an upgrade or download something. It marks that i have to install the cydia installer or to upgrade it, but i receive everytime this error message
    THX a lot for your quick help

  50. Snowball Says:

    I had this problem too. I had to change the mobile, desactivate the pin code from my sim card and then it worked on my Iphone. Perhaps this can help you

  51. angel Says:

    So, I need to found an active ATT sim to upgrade my iphone?

    Please HELP

  52. angel Says:

    PLEASE HELP!@!!!!!!

    I have a iphone 1st generation, it was with version 2.2, i try to upgrade from Itunes, but it keep telling me cant activate the iphone cause it has the wrong sim card and stop there. Now what?, how can I bypass this?

    Please help.
    Now no service, no iphone :(

    wHAT Should I do?

  53. Snowball Says:

    My Iphone told me inactive SIM or a blocked sim. So normally your sim card has a security code, that you have to enter everytime when you switch on your phone (in luxembourg called PIN). So you have to put your simcard in another phone, desactivate this security code in your settings, put your simcard back in your iphone and then it starts without any problem

  54. kkbk Says:

    dev team,u guys rock!!musclenerd and thems.keep it up.wish i had enough money to donate big time to the course.lol.tnx a milli

  55. angel Says:

    WOW, really nobody can’t help me???
    I have and iphone 2g, please help!

    Im stock!

  56. pingeleven Says:

    hello. how come i get bad url when i add the ultrasnow repo? tried restarting my iphone but i get the same result..is it just my internet connection causing this?

  57. MacHaggis Says:

    The iPhone 2G needs redsn0w to jailbreak and activate.

    ultrasn0w is for the 3G only (not even 3GS)

  58. MacHaggis Says:

    Correction redsn0w to jailbreak and unlock…

  59. Vinilico Says:

    Do this Messag appear after the upgrade?if yes you only need to’ download redsnow and jailbreak/activate your iPhone that’s all

  60. pingeleven Says:

    i already have a jailbroken iphone 3g. i can add other repo except the ultrasnow one..

  61. freddyfox Says:

    Could someone please clarify exactly how ultrasnow works once it has been installed? Is there an option to toggle it on & off? The reason I ask is because several posts on various forums state that once ultrasnow is installed 3G must be turned off in order to get a signal. My carrier is Softbank Japan, a non-gsm 3G network, & I need to be able to continue to use this on a day-to-day basis. The unlock feature would only be used when traveling overseas. With my iphone jailbroken but with ultrasnow not installed, if I turn off 3G I can no longer connect to Softbank. Therefore if 3G must be disabled after installing ultrasnow I won’t be able to install it.

    Many thanks,


  62. ChaoticMayhem65 Says:

    hey BB quick qestion. Is it a bad thing to have both cydia and icy installed? Ive heard rumors of it being a bad thing but am not quite sure.

  63. ronal429 Says:

    i got “2″ 3g 8gb iphone fw 3.0 after i upgrade them to fw 3.0 i`m unable to get edge or 3g service, i can make and received call but i`m not getting any data services, before i was able to get them edge and 3g, i live in dominican republic, i got 2 iphones 3g i`m using 2 carriers in here ORANGE and CLARO DOMINICANA, and after i update to fw 3.0 i has been unable to have data service

  64. wesk1 Says:

    mine work it activated with tmobile sim car after installing ultrasn0w.

  65. Jazz Says:

    PLEASE HELP! I’ve spent the past 5 hours trying to resolve my problem and no luck!

    I’ve updated to 3.0, jailbroken with redsn0w and installed ultrasn0w (3g off) and still “no service”!! I’ve done this process step by step multilple times. Tried using .ispw ‘s from different sources thinkin that would help. No luck.
    I have also rebooted multiple times with simcard in the device and out. I have toggled with airplane mode. Un-installed and re-installed ultrasn0w (always with 3g off) and still “NO SERVICE”!’

    I’ve seen a few other people with the same probl em but no solution. Please help.
    I am trying to use tmobile service (sim works perfectly in my blackberry) and my iPhone is only 2 months old (not a refurbished phone) which I purchased from apple already running 2.2.1 firmware. If anyone can help please reply or email me at ohjazzy619@gmail.com
    AIM: ohjazzi3

    thanks on advance

  66. Beyondregion1 Says:

    Use redsn0w.

  67. zee Says:


    I have iPhone 3G with 2.2.1 firmware and 02.03.03 modem firmware. Currently i am using turbo sim. I have two questions.
    Can I upgrade & unlock with the method stated above?
    will I still need turbo sim after upgrade?

    Thank You

  68. snowball Says:

    Please help!!!!!!!!

    I faced the problem that i have installed now redsnow but i get eveytime the errormessage :

    Couldn´t configure pre-depend dpkg for grep, probably a dependency cycle

    When i try to make an upgrade or download something. It marks that i have to install the cydia installer or to upgrade it, but i receive everytime this error message
    THX a lot for your quick help

  69. Mike Says:

    hey bigboss, i got push to work and stable signal on tmobile usa with a non active at&t sim. all i did was restore with at&t sim inside, wait for activation, and after instead of restoring as backup, setup as new iphone. it lost signal once and said “no sim installed” but after thatsignal is stable and push works.

  70. LALIT Says:


  71. Anonymous Says:

    thanks, fixed the no service problem for 3g 3.0

  72. Junjun Says:

    I bought my iphone 3G here in the middle east…and later on found out that it is already unlocked (I can use any simcard with it). I already did the JB and is currently using the pre-installed FW 2.2.1…I just want to know if I upgrade to FW 3.0 will I be able to use the back-up that I made (Itunes back-up) also since it is already unlocked will it be relocked and then later should I use ultrasnow to unlock?? Lastly, how about the Mobile Installation Patch thing..will it be the same method as the previous FW 2.2.1….(SSH MI pach file to iphone).
    Thank you guys!! Great JOB!!!

  73. Alexutzu Says:

    but is not posible if you update with itunes!from where i have to downloadit?

  74. capuo Says:


  75. isaacmajdi Says:

    Hey, I unlocked my iphone 3g 3.0 just after the release. The unlocking process went on smooth. Here are few observations which I noticed.

    1). I am using it with Jawwal, Palestine – sometimes even though the iphone is having full signal, when I dial the number, it says that phone is switched off or not reachable. I tried all the processes including restarting several times, airplane mode trick etc. The problem still persist.

    2). Secondly the battery life is significantly reduced! Is this the unlock or software 3.0??? Is there any background app running simultaneously for unlock??

    3) my iphone bacame too slow, when i open any game in my iphone it’s going really slow :(

  76. YAN Says:

    yeh..battery life is reduced,with 3.0 it should be longer last after JB its even less.
    I think BigBoss and DevTm need good update on they 3.0 jailbrake cuz its not verry good!!

  77. Glenn Horsley Says:

    Jessev I am actually half blind so before you use lame sarcasm comments like that you might think about what you say.

    I have not seen anything that mentions QuickPwn or the lack of it coming out.
    I have seen redsn0w but was unsure it was the right thing to use.

  78. Evil Snoopie Says:

    Alright I’m goin to assume you have windows because that’s what I have. If not, you just have to find where your back-up is on the disk. For windows you first have to enable “view hidden files” then go to app data (depending on OS it’s either in users/your name or documents and settings) > apple > mobile backup > your.ipsw. I’m on my phone so this is all by memory but you get the jist…

  79. avil Says:

    My redsn0w jailbreak went fine, but abtbackup didn’t really restore anything or tell me anything. ULTRASN0W worked perfectly the very first try. I am missing my 5-ROW Qwerty keyboard which doesn’t seem to work at al. Everything else seems at least twice as fast. I had a lot of trouble with 2.2 jailbreak and unlock (getting it to work). This was a breeze. Thanks DEV-TEAM for all of your hard work. Is there a way to donate to your cause?

  80. Bill Says:

    Wooo Hooooo!!!!

    Red N Ulrasnow both works GREAT for my 3G 16GB iphone!! (Does happy dance). Works faster but still…Apple IS A bitch!!

  81. santana Says:


    that was very helpful

  82. jae Says:

    can someone please let me know how to fix the bin error when trying to install ultrasn0w in cydia…please

  83. Anonymous Says:

    did anyone’s wifi start to blow after dl ultrasnow?

  84. Laina Says:

    I have a jailbroken and unlocked 2g iphone which I use with T-mobile. I currently have 2.2 firmware.

    Can I update to 3.0 and update my itunes? If yes, what guide do I follow?


  85. Szk Says:

    Hi guys,

    I have updated my 3g to firmware 3.0 and also unlocked it with ultrasn0w. it worked great – but within 6 hours – I got “NO SERVICE”, and its been a whole day i am trying to figure out whats going on.

    Can any1 help – would appreciate a step by step reply since i am new in this.

  86. Tony Says:

    I recommend you don’t updated… Cuss Thats what i did for mine and now somehow it always froze up showing an apple sign only.

  87. Tony Says:

    OH, That would be fine…

  88. adamo Says:

    Hi guys

    Those having issues with the no signal after the JB just install the repo666.ultrasn0w.com to Cydia and then install the ultrasn0w and restart and should be fine..
    Worked for me

    Thanks for the JB

  89. Thx55 Says:

    I have jailbroken my 3g iPhone with redsnow using a mac. Have any of you found that if the phone has to restart it locks up?? I’ve had this happen just buy powering down the phone it shows the apple icon and locks up. I have to do a restore to fix it. ??? Anyone else??

  90. Carlo Says:


    I can’t seem to have a wi-fi connection, how can I possibly be able to install the ultrasn0w?!

    I hope dev team can resolve this problem it will really help alot

  91. alfa Says:

    hello, I Didn’t use ultrasnow but it seems I’ve got some issues with my wifi connexion!
    sinice I jailbreaked it with redsn0w, I cant receive call anymore and I’m force to reboot iphone to make it work properly.
    For the wifi I’m loosing the signal and I can’t see any network around!!
    even when I reboot !
    this morning it was working again & it looses the network again !
    where is coming from ??

    I have to say I forget to switch off the phone during the jailbreak with redsn0w !!
    but directly after the jailbreak, everything was working properly!
    it seems that issues happen later !
    any idea ??
    thanks a lot

  92. alfa Says:

    edit : i don’t need to unlock the phone

  93. avil Says:

    The Instructions are at the top of this page! FCOL – My jailbreak & unlock went flawlessly. I don’t see any real reduction in battery life, although I still seem to have to charge at least once per day. I also find it useful to turn OFF WiFi and Bluetooth, when I don’t need them, extends battery life significantly. BigBoss SBSettings makes this really easy from any app. I can play video for an hour or two, for the kids in the car, and there still is half a charge left. I think for all Apple has crammed into this little space, it’s amazing the battery lasts at all. I just shudder nervously though thinking about what will happen when I have to send it back to them to get the battery replaced. They say 1000 cycles. Taken with a “grain of salt”, I won’t be surprised albeit peeved, if I have to replace the battery shortly after the “year” anniversary of having the 3G. Which is coming up pretty quickly now.

  94. berocha Says:

    you should try a custom firmware allowing more than 500 sys partition that clears lots of problems


  95. prabircht Says:

    Hey Jazz !!!
    heres what I did . Go to a site (ihackintosh.com) or other – download the 3.0 ipsw file – then download redsn0w. Restore using the shift restore system. Jailbreak using redsn0w using the install cydia option. then enable the wireless from settings and use cydia to download and install ultrasn0w – reboot and you ahould have it. Worked fine for me – one shot !!!

  96. John Says:

    I jailbroke and unlocked my iPhone 3G 3.0, thx u guys! Even more thx for the info concerning overheating and low battery life! I resolved it nicely by switching off data push function in the mail settings!

  97. TomTom Says:

    Yea I tried ta jailbreak using redsn0w I cracked it n it putted on me phone Cydia & iccy BUT!!! cydia will not update it’s shit properly some error message constantly came up so I’m guessing It doesn’t work could somebody pls tell me wat the fuck i need to do & I used windows

  98. JIimmy Lo Says:

    Hi everyone. First of all my sincere thanks to Big boss, Saurik and the dev team for all the good work they have done for ordinary people like us who use iphone. Without jailbreaking the iphone, it would have been no fun. I was using JB 3g phone ( 2.2 ) in India, today I followed the instructions using redsn0w, I upgraded to 3g. It was easy and got the desired results only probs is it shows NO Service. I read the post and I will follow the steps as mentioned. The only thing that I am not sure is should I restore my iphone from back up in Itunes or set up as a mew phone. Somebody please advise as whats best as I had purchased lot of games and applications from itune. Kind help will be appreciated.
    Thank you all especially Big Boss.

  99. Jimmy G Says:

    I have a question can someone please help. I recently purchased the iphone 3gs. I was wondering when I unlock it can I enable 3g on it since I will be using a sim from the G1 that had 3g service.

  100. Jimmy Lo Says:

    Hello somebody pls guide me. I have updated my old 3g iphone (2.2) to 3.0. Using redsn0w I jb it. I have to sync it with my pc. In Itunes should I set it as a new phone or restore from Backup. This is the first time I am trying jailbreaking so pls somebody guide me. If i sync it as a new phone will I lose my old games and applications which I had bought and downloaded from itunes.
    pls reply ASAP.
    Thank you.

  101. Anonymous Says:

    setup as new when you sync all will be there dont forget to check mark sync app in itune

  102. Jimmy Lo Says:

    Thank you very much Anonymous. It seems I have another problem now. I still have the problem of NO SERVICE after jb. Cydia installed properly and shows down below OS 3.0 cydia .1.0.2953-59. I cant find the repo666ultrasn0w.com to install ultrasn0w. I refreshed cydia even restarted iphone but still not showing. Then through cydia I installed icy but there also repo666ultrasn0w.com is not showing. Pls help as I can only use my iphone as Ipod. HELP ASAP.
    bigboos, dev tem and others. Thank you

  103. Jimmy Lo Says:

    Hi, I just wanted to add more details. I used my PC with Windows XP. first I did restore and update in itunes, then used redsn0w to jb it. My 3g iphone with OS 2.2 was already jailbroken and unlocked as I was using GSM sim ( IDEA, INDIA )of a company which was not tied up with iphone. My Wifi is working fine only probs is NO SERVICE. Pls help!BB.
    Thank you all

  104. Anonymous Says:

    jimmy go to cydia under manage than soure than uper right edit and add than type in apt666.ultrasn0w.com go to change reflesh you will find ultrasn0w there

  105. jimmy lo Says:

    Thank you very very much Anonymous. Finally did it. I had to type repo666.ultrasn0w, then choose apt666.ultrasn0w.com. But there is a big hitch. Luckily I use 3 different operators. Now it works only on Vodafone network. Previously I was using Idea networkm but now it shows No Service. Even when I put my Vodafone Sim, first it shows no sim and starts serching and after some time Vodafor In network comes. Something better than nothing. Is there some bugs in using Ultrasn0w in India. By the way here officially only Vodafone and Airtel are tied up with Apple. Even airtel sim does not work. My handset was purchased from Vodafone but my sim was not locked to it as I purchased from somebody else.
    Hope a better unlock softwere comes out so I can use it on other sim.
    Thank you all especially Annonymous and BB. YOU ALL ROCKKKKKS.

  106. Rudy Says:

    hey i have a 3G 16gb

    running 3.0
    jb with redsn0w
    unlocked with ultrasn0w

    followed ALL instructions precisely

    but unstable signal,

    what should i do?

    i am on T-Mobile

  107. Help needed Says:

    Hi I dont have access to wifi where Iam have broken the phone any way of loading ultras0w, mac file not windows.

  108. Hello Says:

    Thank you Dev Team. Great Job!! With redsn0w 0.7.2, I was able to jailbreak my iphone which is at version 3.0. And, after that, with ultrasn0w, I was able to unlock it. Great work Dev Team. Thank you so much!!

  109. Steph Says:

    I had a quick read through, but not sure if there has been a response to the lack of wi-fi signal after JB. I have a phone that is locked to AT&T but am now in australia, so wouldn’t get wi-fi signal through that anyway (I dont think…)
    JB worked fine but it wont accept the Cydia link because there is no wi-fi connection….

  110. Alec Says:

    I have AT&T and I used Ultrasn0w and everything works fine but the internet. It says I have 3G and but when I go to use the internet it say “Could not activate cellular data network: You are not subscribed to a cellular data service”. But I pay for 3G internet through AT&T just not iPhone internet. Someone please help I need the internet on my iPhone 3G

  111. homie Says:

    i hope an ultrasnow toggle will be provided for sbsettings. i know there is one for bossprefs but i thought sbsettings should be used instead.

  112. Jimmy lo Says:

    Hi everyone, few days back I had installed bossprefs 3.0 & backgrounder. Everything worked fine but now my cidia is crashing. When i try to log in cydia it shows dowmloading databut comes out to front page. Pls help cant live without cydias app ant themes. I am using 3 g iphone 3.0 filmware.previously i was on 2.2 , I restored in Itunes, jailbroke with redsn0w and unlocked using ultrasn0w. After unlocking my old simdoes not work. I now use myother sim. Big Boss and others pls hellllp. Thank you

  113. Jimmy lo Says:

    By the way I even tried to delete with cydelete, it does not work. Says error uninstalling

  114. Roxio Says:

    works like a charm :)

  115. Roxio Says:

    try using airplane mode on/off
    Also you can take out sim and put it in while phone is switched on…

  116. Anonymous Says:

    Hi..can’t find the path.. What do I do wrong? I updated and jailbroke my 3g.. But when I go cydia and put the path, says it can’t find.. I’ going mad! Please please, anyone can help? Big thanx

  117. jimmy lo Says:

    Hi, guys, I am still having problems with NO SERVICE even after installing ultrasn0w 0.9.1. This is almost 3 weeks now. Fed up using iphone as an ipod only. Pls advise how to get the signal back. Did everything possible, even restored, jb and unlocked atleast 10 times but still NO SERVICE. Looks like BIGBOSS has deserted this blog.
    Kind suggestion will be appreciated.
    Thank you.

  118. Ollie Says:

    Hi, Sorry to be a pain but I’m having some diffiulties unlocking my phone. Unforuntately sidia is not accessible to voice over. I’m blind and having to get people to help me. I installed jb using purple rain but when I have installed sidia and attempted to retrieve ultrasn0w it returns with repositary not found. I’m certain it is being typed in correctly. Any idea what I’m doing wrong? Its a little difficult as I need to keep asking mates to try it for me. Is there any other way of doing it, I can use a computer with no real problems, is it possible to install the ultrasn0w remotely? Thanks O

  119. me Says:

    oh men you guys are just awsome , you people are the best, thank you for making my life fun

  120. avista70 Says:

    Ok people – I messed around with this for days, tried to unlock one 3GS and two 3G phones and I kept on getting the ‘No Service’ message – essentially not taking any cards other than AT&T. I’ve read about people telling others to get newer sim cards, etc. Bad hypothesis.

    I repeated the unlock process over and over again – and no luck.

    After trying it countless times, I’ve figured out what the problem is. The issue occurs in the last suggested step of unlocking. I pre-maturely pressed Home and Power to restart. After you try to install purplesn0w or ultrasn0w (what I used), press the screen button that says something like ‘reboot’ – do NOT do the hard power+home button reset. Let the software completely finish installing the unlock software, and you’ll be good to go.


  121. don villarosa Says:

    im having a hard time DL the ultrasnow whenever i type repo666.ultrasn0w.com this is what comes out…. the indicated repository could not be found…. what should i do?

  122. jamesd1128 Says:

    hey I am having the same problem as don villarosa. I unlocked my iphone 3g on os3.0 with ultrasn0w a while ago and just did a restore and now it won’t work. every time i try to add http://repo666.ultrasn0w.com it says that the repository could not be found. any help would be great thanks! email me at jamesd1128@gmail.com

  123. stongle Says:

    $10 says you’re not half blind.

  124. Kevin Says:

    Have you figured out how to fix this? I’ve been having this problem for a couple of weeks and it’s driving me crazy. I’d really appreciate it if you could help me.

  125. Andrew Says:

    Hey Steph,

    Did you get your iphone to work in Australia?

    My iphone is from north america. I just bought a crazy john’s sim card but it doesn’t seem to be capable with my iphone before and/or after I used ultrasn0w.

    I used the crazy john’s sim card in an Australian iphone and it worked fine. I also tried the ’3′ sim card from that australian iphone in mine but it didn’t work either.

    I’m wondering if it’s the North American phone causing the problems, or if it’s the unlock.


  126. priya Says:

    hi jimmy,
    i have same problem in india delhi.have u done anything more for fixing this bug for “no servise” i think if there is week signal then it will show no signal

    if any one have any idea then plz help me ????????????

  127. allen1624 Says:

    i’m having a problem with my iphone 3.0 which is unlock by ultrasnow.@ this time i’m using the network connection but i cannot connect to wi-fi…pls.help me to fix it

  128. ely Says:

    I updated my iOS firmware to 4.2 and my baseband is now 6.15.00. I was able to jailbreak my iphone and installed ultrasn0w successfully. However, my iphone can’t still recognized my other sim cards from other networks. Can someone help me with this issue? There’s always a pop up on my iphone that no sim card is installed.
    I ran my red snow jailbreak not by “run as administrator”. I just simply open it. What will be the results or problems I will encounter on my iphone when I ran the redsnow not by “run as administrator”? I am thinking this might be the reason why my phone can’t still recognized another sim even after jailbreaking with redsnow and unlocking with ultrasnow. Please help. Thanks in advance.

  129. Rose Says:

    Hi, I am hoping someone out here can help me…. I jailbroke my iphone, OS 3.1.3, model MC136LL, firmware 05.12.01 with Spirit on my Mac, and tried to unlock with ultrasn0w. Get an error message that says – “The requested modifications cannot be applied due to required dependencies or conflicts that cannot be automatically found or fixed.”
    It further lists
    Modifications: InstallMobile Substrate

    Depends firmware >=3.0

    What is going on? Anyone out there has seen this or can help, please?

  130. EuroGadGets iPhone 4s Says:

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  131. Laptops Wholesale Says:

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