How to Unlock iPhone 3.1.3

By , Feb 7, 2010

This guide and tutorial will show you how to unlock iPhone 3.1.3 using UltraSn0w or BlackSn0w, depending on your iPhone baseband.

The first step is to jailbreak your iPhone 3.1.3, either with RedSn0w or with PwnageTool. Note that PwnageTool is the preferred method as it helps preserve the baseband.

You can use UltraSn0w to unlock these basebands:

  • 04.26.08
  • 05.11.07
  • 05.12.01
  • 05.13.04

To find out what your baseband is, go to Settings > General > About > Modem Firmware.

How to unlock iPhone 3.1.3 with UltraSn0w

  • Launch Cydia.
  • Add the following source to Cydia repo666.ultrasn0w.com (note there is a “0″ in sn0w, not an “o”).
  • After installing this source in Cydia, search for “ultraSn0w”.
  • Install UltraSn0w and reboot your iPhone.

How to unlock iPhone 3.1.3 with BlackSn0w

  • Launch Cydia.
  • Add the following source: http://blackra1n.com.
  • After installing this source in Cydia, search for “BlackSn0w”.
  • Install BlackSn0w and reboot your iPhone.

Your iPhone should now be unlocked. If you have questions or comments on how to unlock iPhone firmware 3.1.3, please leave a comment.

UPDATE: This post is outdated. Check out our unlock section for the latest information about iPhone unlocking.

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  • http://no giaphu_dn

    trời ơi ! cái ver 3.1.3 quá rắc rối . tôi đang bị an nguyên con Baseband 5.14. and OS version 3.1.3.
    ôi nhức đầu

  • NiceMe

    Help me unlock a Iphone 3G with: ios 4.1 bootloader 5.0.9
    Anybody know where to find this?

  • hisham mahrous

    GUYS i have an iphone with SW 3.1.2 baseband 5.14.02 and bootloader 6.02 ……I DON’T KNOW WHAT TO SAY ” IAM STUCK IN THIS SHIT ” I’m realy don’t know what to do …….I’m just waiting for DevTeam ((((((((please devteam tell us when you will release this UNLOCK)))))))))……

  • hisham mahrous

    GUYS i have an iphone 3G with SW 3.1.2 baseband 5.14.02 and bootloader 6.02 ……I DON’T KNOW WHAT TO SAY ” IAM STUCK IN THIS SHIT ” I’m realy don’t know what to do …….I’m just waiting for DevTeam ((((((((please devteam tell us when you will release this UNLOCK)))))))))……

  • Janelle

    Hey guys, I have restored my iPhone to the factory settings as the service provider said it was unlocked but it is still locked. Now I can’t do anything as I need to activate it and it won’t accept any sim cards except from the old provider. Any ideas?

  • cotrex

    hei guys, I try to unlocked my iphone 3gs with this tutorial. but its not working and getting freeze.
    all the button its not works. can any one tell me what should I do?

  • http://www.xdmweb.com/ bet365

    hi!This was a really brilliant blog!
    I come from roma, I was fortunate to find your topic in google
    Also I get much in your website really thank your very much i will come again

  • Joel

    The blackra1n update fried my iphone, don’t do it.

  • ochko

    hey people if u guys are still here please help meeee. i have iphone 2g and my carrier is att. tried to put my sim card and its telling me to go to itunes but itunes is asking for a data plan. i dont want a data plan. but seems like if unlock it or jailbreak it, it will work? help meee

  • Hidayet

    Hi.I have 3.1.3 and 05.12.01 modem firmware.I restored it to 3.1.3 again and my operaotr was turned off and there shown that no service or no signal..Please help mee..hidayetscrpion@hotmail.com-Please if somebody can solve it it is my msn adress.Please contact with me….Pleeeezzzz

  • ANGRY

    BLACKSN0W KILLED MY PHONE DONT DO IT.

  • http://www.google.com angry is an arse

    blacksnow probably killed your phone because you were an arse and didn’t listen that it won’t unlock 3.1.3

  • Saeid

    can someone please tell me how i can get a backup copy of my contacts in my iphone on my PC and be able to edit or see them.

  • Satyan

    I have iphone from US with version 3.1.3(7E18) with modem firmware 04.05.04 G.
    Anyone pls help me unlock.

  • http://facebook.com/juuliioocesar juuliioocesar

    Heyy , What’s up !

    Today I want to teach you how to do it using you windows 7 or lower system operational ;)
    * first of all close everything you have open! ”Especially Itunes ”
    [ You don't actually need it now ]

    Do you have Tinyumbrella ? no ? download it ! ( the new version )

    * Open Tinyumbrella and find out which IOS you already have just to make sure !
    do you have 4.3 ? ok ! downgrade it !! how ? –>

    –> * Connect you Iphone to you computer and open Itunes
    ‘ Set your Iphone on DFU mode Holding down the Power button/Home button at the same time !

    * Your device is on DFU mode and your Itunes knows !
    after that you have to download the firmware you want to downgrade it for ( 4.2.1 or 4.1 ) if you have 4.3 running either one works :)

    * After downloading it open up your Itunes / hold down shift*restore and tell Itunes where is the firmware you just downloaded

    * Right now your Itunes most be loading the software/ if you have the USB message saying its too slow close everything, open Tinyumbrella and select start TSS Server.. minimize the program and open IREB do set it on DFU ! it should close your Itunes but you device is on DFU mode still [S]

    * Reopen your Itunes and try one more time =S

    * After the restore is completed you most use redsnow to jailbreak it for you
    open redsnow and select 4.1 or 4.2.1 … it will give options to select ( cydia only for now ) go next !

    * Iphone rebooting and MAC on screen / Good ,, Very veri gud!!
    God job !

    * after its done you have you Iphone unlocked but not jailbroken .. right ?
    yes !!!!!!!!!!!!!!!!!!!!! derrr

    * DFU MODE AGAIN !!!
    open redsnow with the same firmware and select install baseband and go next !

    * Are you done ? you probably don’t have cellular data network!
    you most be fucked up ! damnnn it !!!
    just kidding , Its under control ..
    go to setting and turn your air port on .. 3g off .. WI-FI on./ data off

    * Open Cydia and go to Sources , install Ultrasnow to unlock the baseband for you !
    tammdammm !!!! working !!! gud jobi . very veri gud job !

    problems with WHITE SCREEN ? take bettery out for 30 minutes and put it back on ! … try to restore and it will be fine !

    They say you can’t restore 4.3 but its not true .. beeijo ! beso .. kisses girlz !

  • daylena

    I have iphone from US with version 3.1.3(7E18) with modem firmware 04.05.04 G.
    Anyone, help me unlock. CONTACT ME : dayeisrael_4ever@live.com

    Thanks

  • saeid

    I have iphone 3g with version 3.1.3 (7E18) and have installed iBluenova from Cydia on my phone and when I want to transfer files via bluetooth using iBluenova it doesn’t work.

  • http://hercules.gcsu.edu/~flowney frankusz

    I have an iPhone 1 with boot rom 04.05.04_G The OS is maxed out at 3.1.3. How do I unlock this one so I can use T-Mobile?