How to Unlock iOS 4.0.1 on iPhone 3G & iPhone 3GS with Ultrasn0w 0.93

By Sandip Dedhia on July 16, 2010
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The unlock for iOS 4.0 was released immediately after it went live, this could be fastest unlock from iPhone dev team but release of iOS 4.0.1 could have spoiled all fun. It is surprising to see Apple didn’t update the baseband in iOS 4.0.1 and it is same as iOS 4.0 Baseband 05.13.04 meaning users can update to iOS 4.0.1 without fear of getting locked and same is confirmed by iPhone dev team member Musclenerd. Users with iOS 4.0.1 can unlock iPhone 3G & iPhone 3GS with Ultrasn0w 0.93.

We have already covered guide on how to jailbreak iOS 4.0.1 on iPhone 3G & iPod Touch 2G now here is step by step guide to unlock iOS 4.0.1 on iPhone 3G & iPhone 3GS.

Please Note: T-Mobile USA users must disable 3G before proceeding to unlock iOS 4.0 on iPhone 3G & 3GS.

How to Unlock iOS 4.0.1 Baseband 05.13.04 on iPhone 3G/3GS

1. Jailbreak iOS 4.0.1 using Redsn0w  0.9.5 Beta 5

2. Now start Cydia and go to Manage section

3. Now click on sources and click on edit to add following repo

Repo666.ultrasn0w.com (it’s ‘0(zero)’ and not ‘o’)

4. Now search for Ultrasn0w 0.93 and click on install

Ultrasn0w 0.93

5. Let Ultrasn0w 0.93 to complete unlocking

iPhone will reboot after ultrasn0w completes its process. Now enjoy your unlocked iPhone 3G/3GS 4.0.1 with your favorite carrier.

Posted in , , | Tagged , , , , | 34 Responses
Sandip Dedhia

Sandip Dedhia

Sandip Dedhia is the founder of Blogsdna.com, he loves to write on technology, gadgets & web services. At Blogsdna you can read his Windows & freeware software related articles. He is on twitter too @sandipnd View author profile

  • ben

    Deleted my comment? THAT´S APPLE-Style! You guys have contracs with Apple? iBlog!

  • Dexter

    I have Iphone 3gs with 4.0 software and baseband 5.13.04. I tried using Redsn0w 0.9.5 Beta 5 and when i select the ipsw it says unable to recognize specified ipsw. Any idea what needs to be done in this case………..

  • kiziol

    it doesnt work!!!!!

  • vis

    i have bought i phone 4g to india ,how can i unlock it

  • albert

    it doesnt work!

  • Adam

    I did all the above, and jailbreaked it.. Installed ultrasn0w and still no service with my T-mobile Card.. Please Help!! Can i downgrade it back and have my phone work? Im with out a phone now :(

  • Sean

    You need to tell Redsn0w the previous original IPWS, not the th eone you install. It just used that for reference and then it went through its own “magic”. In other word, if you “Restore” with 3.1.3 IPWS file, you need to tell Redsn0w the 3.1.2 IPWS file, or if you “Restore” the 4.0.1 IPWS then you need to tell the 4.0 IPWS file… It works for me like a charm. GOOD LUCK

  • Kumar

    I have iPhone 3gs with 4.0.1 software and baseband 5.13.04. I tried using Redsn0w 0.9.5 Beta 5 and when i select the ipsw it says unable to recognize specified ipsw. “IT IS NOT WORKING”

  • smash

    it doesnt work on 3gs 4.0.1

  • enrique

    not work, in iphone 3gs iOS. 4.0.1 the jailbreak not work

  • hunk

    Dude Redsnow beta doesn’t support 3gs ….

  • http://www.blogdna.com Ltran123

    To who may looking to unlock iphone 3gs 4.0.1 new baseband or new boostrom this kind of work will not work for iphone 4.0.1 new baseband or new boostrom so please help us to remove this .

  • Mike

    There are several sites stating that this works for 3GS. This is wrong. You’ll get the error Ben gets. This will work for 3G, not 3GS. A jailbreak for 3GS is hopefully being released this weekend. See http://www.spiritjb.com for info. Currently spirit jailbreaks all iPads, iPhones, and iPod touch using 3.1.2, 3.1.3, or 3.2.

  • janna

    hi, i have a problem the iphone is 3GS and is 5.13.04 and i cant jailbrak it with the redsnow every time i tried it say redsnow the ipsw isnt recognize etc… so how can i unlock it ? plzz help me anyone

  • janna

    sorry i ve forget the ios is 4.0.1 :(

  • ramin

    3gs is not supported

  • Naresh

    Unlocked iPhone 3GS with iOS 4.0.1

    Worked like charm. Enjoying T-Mobile connection on iPhone. AWESOME…

  • Naresh

    Jailbreaked iPhone 3GS with JailBreakme.com, then used ultrasnow 0.93 to unlock the phone.

  • admilson

    tenho um iphone 3gs atualizado com fw 4.0.1 como faço para desbloquea-lo tem geito,ele nunca foi mexido.ta bloqueado.

  • Charlie

    After i unlocked it I couldn’t send pics thru texting?

  • Scott

    I have an iphone 3gs 4.0.1 jailbroken and I followed the steps on how to install Ultrasn0w 1.0-1 and I get no service. Also when I go to Settings > General > About then Network says Not Available and whe you Select the Network (from About) and i get SIM not allowed. Does anyone have a work around or know of another free software that can be used?

  • Hari

    Hi,please if there is any body can help me to let me know how can i take this lock off from my iphone 3gs 4.0.1 because really i feel very sad i bought it and i can not use it by my sim card please help if you can send me the best way…thanks a lot.

  • CYDIA

    When i add Repo666.ultrasn0w.com source it says that it failed! Why??

  • JOHN

    1. update phone to 4.0.1
    2. on iphone go to jailbreakme.com using safari
    3. slide to jailbreak
    4. run Cydia go to manage-sources-repo666.ultrasn0w.com and install then reboot. note: if you dont have repo666 on source then just simply add source on top right corner where it says edit.
    5. your done.

  • Sinisa

    I have 3gs and dont have original sim so after update on 4.0.1 firmware 05.13.04 activate with dits phonebook sim card and do cyntia unlock with ultras0w 1.1-1 and reboot it when put sim come different SIM detected please connect to itunes and slide for emergency , have also network to receive calls and sms. how to move that mode

  • James

    You must disable 3g to allow this to work

  • Deep B

    Hi
    I have already jailbroken my phone, but when i go to install repo666.ultrasn0w.com, i get an error message saying http 1.1.403 forbidden..I’m in Dubai..any suggestions on how to unlock it?

  • Divad

    After I downloaded repo666.ultrasn0w and I installed it, my phone doesn’t ask me to reboot it, it only asks to restart springboard, does that mean my iphone is unlocked? am I able to use other SIM cards now?
    I’m confused HELP PLEASE!
    please explain if anyone can. I’ll be using my truefone sim card away from home.

  • emilijanenko

    “I have 3gs and dont have original sim so after update on 4.0.1 firmware 05.13.04 activate with dits phonebook sim card and do cyntia unlock with ultras0w 1.1-1 and reboot it when put sim come different SIM detected please connect to itunes and slide for emergency , have also network to receive calls and sms. how to move that mode
    Written By Sinisa”

    I have the exact same problem, disabling 3G doesn’t help!

  • emilijanenko

    found solution, FINALY!

    everyone with same problem do this:

    “run Cydia and add source: Cydia.pushfix.info
    install the “Hacktivation Patch” package.”

    ENJOY!

  • duwaine

    i have a iphone 3gs with a 4.1 OS and i cannot unlock it. i try to unlock it, but it asking me for a sim card that come with the phone and i dont have it can anyone help please.i wpuyld like to used my phone please please help me out thanks in advance

  • emilijanenko

    @Duwaine, You have to buy 1 activation sim card, like these:

    tiny.cc/vk9ge

    It is used for activating iphone, when original SIM not present

  • http://www.facebook.com/people/Tom-Cruize/100001659985378 Tom Cruize

    New year is coming unlock your iphone4 now at http://www.unlockiphone4-now.com

  • Bruce Mc

    the software does not work and there is no way to contact the seller.

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