How to Unlock the iPhone 3G, 3GS Using BlackSn0w

Posted November 3, 2009 at 11:54pm by iClarified | Please help us and submit a translation by clicking here | 873106 views
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These are instructions on how to unlock the iPhone 3G and 3GS using BlackSn0w. To follow these instructions you must be on the 05.11.07 baseband and have already jailbroken.

If you have not already jailbroken it will be easier to follow one of these tutorials which will walk you through both jailbreaking and unlocking.
- Windows
- Mac

To check your baseband you can follow these instructions.

Lets begin...

Watch the Video!
For your convenience this tutorial is available in video format also. Click the Watch It button to view the tutorial!

Step One
Press to launch Cydia from your iPhone Springboard.

Step Two
Press to select Manage from the tabs at the bottom of the screen.

Step Three
Press the large Sources button.

Step Four
Press the Edit button at the top right of the screen.

Step Five
Press the Add button at the top left of the screen.

Step Six
Input as the source address then press the Add Source button. Once Cydia has added the source press the large Return to Cydia button.

Step Seven
Press the Done button at the top right of the screen.

Step Eight
Press to select from the list of sources.

Step Nine
Press to select blacksn0w from the list of packages.

Step Ten
Press the Install button at the top right of the screen.

Step Eleven
Press the Confirm button at the top right to begin installation.

Step Twelve
Once the unlock has been installed successfully press the large Return to Cydia button.

Step Thirteen
Wait a few minutes for your CommCenter to restart and you will now be able to use the SIM card of your choice on your unlocked iPhone!

***THANKS: Congratulations and thanks to Geohot for making this unlock possible. You can donate towards his efforts at
Add Comment
likealways - May 15, 2013 at 5:12am
Very informative article.I was searching for a way to unlock my iPhone 3GS and I found this article. I planned on this method but,When I found that Jailbreaking will void the warranty of the iPhone 3GS,I got scared and searched for methods that won't void the warranty and found Remote Unlock Service in .This remote unlock service won't void the warranty of the iPhone(Jailbreak is not needed) also it is permanent unlock solution and works on all GSM iPhone models running is any versions of iOS and base band.
ankit - April 23, 2013 at 5:40pm
Phone got stuck in boot mode,my phone is booting mode. IPhone 3g 4.1 Trying to do a restore now. From my experience don't try this!! please help me how to get out for this problem.
Dane - February 17, 2013 at 1:40pm
Phone got stuck in boot mode. IPhone 3g 3.1.3 Trying to do a restore now. From my experience don't try this!!
Saul - April 15, 2013 at 1:03pm
For the people who wants to unlock ATT phones, go google attiphoneunlocking, they unlock any model and firmware up to date. Took me only two hours.
fkurmama - December 19, 2012 at 5:29am
you mother fuckerrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr fuked my phoneeeeeeeeee bitchhhhhhhhhhhh
Desean - December 17, 2012 at 2:28pm
the package didnt even tell me that blacksnow is for 3.1.2 im on 5.1 and downloaded it. now my iPhone 3gs 8gb wont get past the apple logo, and when i went into redsnow i tried "just boot" and i tried "jailbreak and install cydia" neither one worked. so there should be specifications INSIDE THE PACKAGE TO LET PEOPLE KNOW THAT IF YOURE ON 5.1 IT WILL KILL YOUR PHONE.
238 More Comments
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