Unlock iPhone 3.1.2 Firmware using blacksn0w

By Altaf Sayani on November 3rd, 2009 in Apple | 12 Comments

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blacksn0wAs promised GeoHot has released blacksn0w today, this is the only unlocking tool available for 05.11.07 baseband. This is like a huge relief for all those users who have inadvertently upgraded their unlock iPhones using iTunes and ended up on locked iPhone with 05.11.07 baseband.

Here is a step by step guide on how to Unlock iPhone 3G/3GS using blacksn0w.

Unlock iPhone 3G/3GS 3.1.2 Firmware using blacksn0w

Note: Those who have already jailbroke using blackra1n RC1 or RC2 should just run blackra1n from your iPhone and you will notice “ra1n” option replacing Icy, just tap it and it will upgrade to blacka1n RC 3 and then start from step no. 9 below to Unlock your iPhone on 3.1.2 firmware with 05.11.07 baseband

1. Download and Install latest iTunes from Apple website.

2. Update or Restore using original iPhone 3.1.2 firmware using iTunes.

Now connect your iPhone to iTunes and update 3.1.2 firmware (Click here for direct download links, if you want to restore)
Once update complete Run BlackRa1n (make sure your device is connected)
Once Opened click on “make it ra1n” button
Your iPhone will now go into Recovery Mode and you will see GeoHot image on your iPhone instead of default recovery image.

3. Now connect your iPhone to iTunes and update 3.1.2 firmware (Click here for direct download links, if you want to restore)

4. Once update complete, Download blackra1n RC3 from official site here.

5. Run BlackRa1n (make sure your device is connected)

6. Once Opened click on “make it ra1n” button

7. Your iPhone will now go into Recovery Mode and you will see GeoHot image on your iPhone instead of default recovery image.

8. Once jailbreaking process completes your iPhone will reboot and you will notice blackra1n icon on iPhone, tap that icon to launch the application.

blackra1n-rc3

9. You should there see “sn0w” option, tap on it and it will start Unlocking process.

10. Here you go now with Jailbroken and Unlocked iPhone 3.1.2 Firmware with 05.11.07 baseband.

Enjoy!!

Still have any query/problem, don’t hesitate to use Comment form below.

UPDATE: If you are having WiFi issues after unlocking then Reset your network settings by going to Settings -> General -> Reset -> Reset Network Settings.

Get Free iTunes Alternative Download Now

Related posts:

  1. Blacksn0w to Unlock 05.11.07 Baseband on iPhone 3.1.2 Firmware
  2. How to Jailbreak iPhone 3.1.2 Firmware using BlackRa1n
  3. Jailbreak iPhone 3.1.2 Firmware using BlackRa1n RC3
  4. Unlock iPhone 3G/3GS 3.1.3 Firmware with blacksn0w
  5. Jailbreak/Unlock iPhone 3.1.2 Firmware using redsn0w
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12 Comments

  1. Stan (November 4th, 2009)

    That was the most easiest and pleasant way to jailbreak and unlock my iPhone 3GS!!!
    Well done folks. I have also donated for your further brilliant works.
    Thanks again! :-)

  2. Stan (November 4th, 2009)

    Oops. Problem with WiFi.
    Can’t see any networks.
    3G is also giving a bit of trouble.
    Any suggestions?

  3. Stan (November 4th, 2009)

    All problems solved by hitting “Reset Network Settings” button :-)
    smooth

  4. erikk (December 15th, 2009)

    hey has anyone had and sms issues with a 3g 3.1.2 unlocked using blkrain. i have been getting weird text ir oast texts showing back up after they been deleted and suggestions?

  5. spawn (December 22nd, 2009)

    Someone told me to reset some kind of password after using blacka1n ore else you I phone can be hacked..
    Is that true? and you do you to it if it is?

  6. Altaf Sayani (December 23rd, 2009)

    @spawn

    Few days back iPhone SSH vulnerability came into notice, which may cause a virus attack. To prevent your iPhone from this threat you are advised to change your iPhone SSH Password for more info click here

  7. Pepe (January 17th, 2010)

    After jailbreaking/unlocking the iPhone 3G, will I be able to use a different sim chip in my phone like, Central America?

  8. Jay (January 17th, 2010)

    Hey, Im a new user of an iphone and I am just about to jailbreak it, I just wanted to ask what would be better to choose, Rock, Cydia or sn0w?

  9. Altaf Sayani (January 18th, 2010)

    @Pepe

    After following all the steps stated in the post above (including unlocking via sn0w) you will be able to use any SIM with your iPhone.

  10. Altaf Sayani (January 18th, 2010)

    @jay

    Rock and Cydia are third party app store, while if you want to use any other SIM with your iPhone after jailbreaking then you would have to unlock it using sn0w. In other case you can skip installing sn0w if you are using official carrier.

    For Third party app store I would suggest you to install both Rock and Cydia.

  11. Pepe (January 18th, 2010)

    Thanks. For some reason I am getting this message, “Different SIM detected, please connect to iTunes”… When I do so, I get this message from iTunes, “There was a problem with your iPhone. The iPhone you connected may be damaged and cannot be activated for service.” What can the problem be? It is Jailbroken and Unlocked because I see other Carriers but I can’t swap out the SIM chips to use here in El Salvador.. Is there something I did wrong?

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