Unlock iPhone 3.1.2 With BlackSn0w

by: - Last updated on: December 17th, 2016

The popular iPhone hacker Geohot has finally released the much awaited blackra1n RC3 with blacksn0w which unlocks both iPhone 3G and iPhone 3GS running on iPhone 3.1.2 firmware with 05.11.07 baseband.

This latest version of blackra1n includes unlock and jailbreak for 3.1.2 firmware on 05.11.07 baseband, option for enabling native Internet Tethering on the iPhone, hacktivation support, 15 seconds speed improvement and support for OS X Tiger & PPC (PowerPC) Macs.


Here is what’s important to note:

* BlackSn0w unlocks baseband 05.11.07
* BlackSn0w enables internet tethering
* BlackSn0w is for iPhone 3G and 3GS users only

Those of you with iPhone 2G should follow the guide posted here for unlocking and jailbreaking 3.1.2 firmware. Here is a complete step by step guide on how to unlock iPhone 3G and 3GS running 3.1.2 firmware on 05.11.07 baseband with blacksn0w.

NOTE: Those of you who have already installed blackra1n RC1 or RC2 should just run the the app and touch on “ra1n”, which has been added now instead of “Icy”. This will upgrade blackra1n to RC3. Now simply follow the instruction written in Step 5 below to unlock your iPhone.
with 3.1.2 firmware on 05.11.07 baseband.

How to unlock iPhone 3.1.2 with blackSn0w?

* As mentioned above, if you previously jailbroke your iPhone using BlackRa1n and you kept the blackra1n.app on it, then run BlackRa1n. The Icy icon should be replaced by the “ra1n” option. Select “ra1n” to upgrade BlackRa1n to RC3. After upgrading, run BlackRa1n and you should see the “sn0w” option. Just select “sn0w” and it will unlock your iPhone.
* If you were waiting to update to 3.1.2 or if your iPhone was stuck locked, then download BlackSn0w, run it, reboot, and choose the “sn0w” option from the BlackRa1n.app.
* If your iPhone was previously jailbroken using PwnageTool or if you deleted the BlackRa1n.app from your iPhone, BlackSn0w will be added to Cydia later during the day.

Step 1: Download the latest version of iTunes if you haven’t already. (Download link)

Step 2: Update/restore to the original (stock) iPhone firmware 3.1.2 on your iPhone by using the latest version of iTunes.

Download iPhone OS 3.1.2 for iPhone 2G
Download iPhone OS 3.1.2 for iPhone 3G
Download iPhone OS 3.1.2 for iPhone 3GS

Step 3: You will now have to jailbreak your iPhone running on iPhone 3.1.2 firmware with blackra1n RC3. Follow the complete step by step guide posted before in order to jailbreak your iPhone 3G/3GS with blackra1n RC3.


Step 4: Once you are done with the jailbreak, start the blackra1n app and you should now see “sn0w” option as can be seen from the screenshot below:


Step 5: Now simply touch on “sn0w” to install blacksn0w on your iPhone. This will automatically unlock your iPhone 3G/3GS running 3.1.2 firmware on 05.11.07 baseband.

blacksn0w will soon be available on Cydia too. If you have upgraded to 3.1.2 firmware with PwnageTool 3.1.4, then you will soon be able to unlock your iPhone with 05.11.07 baseband with ease. Stay tuned for more updates on this!

Update: GPS, Youtube, WiFi Fix after blacksn0w unlock


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  1. I have already unlocked and jailbroken my iphone 3G 3.1.2 with blackra1n and snow when it first came out. I do have slight issues with my wifi and push notifications. if i upgrade to blackra1n RC2 Final will that wipe my phone of all my apps and info etc? or will it keep all that info?

  2. my iphone just shows the apple sign and it doesn’t load up and doesnt connect to itunes
    what can i do?

    1. uhhh i have the same ordeal/problem i keep jailbreakng the iPhone with blackrain but i ended up to the same iTunes logo this is so frustrating!!!!!!!!!!!!!!!!!

  3. I’m very impressed! I didn’t have any problems with these directions and I am not very techy. Really appreciate the ‘easy to follow’ step by step directions. I moved to Germany recently and have been thinking about unlocking my iPhone 3G and now I finally did it and it only took minutes, if that! THANK YOU!!!!

  4. hi, i hv some problems here. my iphone is 3GS 3.1.2. i accidentally uninstalled blackrain application on my iphone. then, my iphone screen shows itunes logo and the “connect to itunes” logo. i’ve tried to jailbreak it again with blackrain, but it can’t be done. after the jailbreak picture shows on the screen, it goes back to the itunes logo again.
    i’ve updated my itunes software to 9.2.1, but i didn’t restore my iphone bcause i heard that if i upgrade my phone to 3.1.3, i’ll lose the unlock.
    i tried to jailbreak it over and over but it doesn’t work. now my iphone is useless, i can use it since i have to jailbreak it first. what should i do then??please please help me

    thankyou so much for ur help..