Unlock your factory fresh iPhone 3GS with ‘blacksn0w’ (OS 3.1.2 and baseband 05.11 friendly)!


If you accidentally updated your iPhone 3G/3GS to the latest iPhone OS 3.1/3.1.2, then you’re also stuck with baseband version 05.11. If you recently bought a factory fresh iPhone 3GS with OS 3.1 or 3.1.2 already loaded, then you’re in the same boat. That used to be a bad thing, because baseband 05.11 couldn’t be unlocked to work with unofficial SIM cards. Today’s release of “blacksn0w” changes all that. The blacksn0w software unlock utility is now available to unlock any iPhone 3G or iPhone 3GS running the latest iPhone OS 3.1.2 and baseband 05.11!

Yes, that includes brand new, out-of-the-box, iPhone 3GS’s.

If you’re running an older version of the baseband (04.26), simply jailbreak your iPhone and run Ultrasn0w. You can find your baseband firmware version by navigating to Settings>General>About>Modem Version on your iPhone. We have jailbreak (PwnageTool) directions here and unlock (ultrasn0w) directions here.

For the rest of you in the “baseband 05.11” boat, keep reading for a step-by-step tutorial to unlock your iPhone…

  • First, you’ll need to jailbreak your iPhone. We’re going to use the blackra1n jailbreak utility for this guide. You can use PwnageTool, but it will require you download blacksn0w separately. Just follow this guide and you’ll be fine. (if you’re already jailbroken, skip to the unlock section)
  1. Download blackra1n from blackra1n.com (choose Mac or PC version)
  2. Extract blackra1n to your desktop
  3. Execute blackra1n with a double-click
  4. Connect your iPhone 3G/3GS to your computer
  5. Click “make it ra1n”
    • Your iPhone will reboot
  6. You’ll see geohot’s picture upon reboot
  7. Let blackra1n do it’s thing and wait for reboot
  8. Once rebooted, you’ll be told your iPhone is now jailbroken
  • Now you’ll unlock your iPhone 3G/3GS’s baseband (version 05.11 only) – check your baseband version by navigating to Settings>General>About>Modem Version on your iPhone.
  1. Find the “ra1n” app on your homescreen and run it
  2. Hit the “sn0w” button
  3. Let the app work its magic, it’s unlocking your baseband
  4. Once your iPhone 3G/3GS is unlocked, you’ll be prompted to close the app
  5. Enjoy your unlocked iPhone! (remember to disable “3G Data” if you’re on T-Mobile USA)
    • You’ll notice that “Cydia” is now installed on your homescreen. This is your jailbreak appstore, it’s your new best friend.

Note: If you want to remove the “ra1n” app, simply fire up the app again and select the “Uninstall blackra1n” option

[Via: geohot]

  • Ishfaque

    the simplest and easiest unlock till date…

  • Kenroy Taylor

    how do i download blacksnow? is blacksnow and blackra1n the samething?

  • solsurf

    please help
    im not getting his pic on the phone after connecting
    it only has the connect to itunes symbol
    also on my computer (G4 powerbook) says the phone is in recovery
    mode and needs to be restored. this happens everytime
    can anyone help please, its so frustrating
    many thanks

  • solsurf

    i have a brand new bought 2 days ago 3GS with 3.1.2

  • Mark

    The best unlock ever so far.. I was able to unlock both my 3G and my 3GS … both work great with one exception, after my 3GS synced with itunes (to get all my music and so on) I lost the wifi signal for some reason.. any ideas why?

  • Brd

    Can I do this with 3.1.2 and 5.11.07 or not?

  • Dan

    I jailbroke my iPhone no problem but I decided to use Rock instead of Cydia. I downloaded a ringtone and now itunes is telling me I have to restore my phone, the same thing is coming up on the phone as well. Any ideas or am I going to have to resest it?

  • xxsaxx

    I tried unlocking my iphone with this new software but it did not work out. Yes, my iPhone is OS 3.1.2 and baseband 05.11. I tried doing it several times but my card is still locked. Any ideas on what to do? 🙁

  • Chris

    I’ve jailbroken my new iPhone 3gs twice. One time my phone ran out of battery and boom it didn’t start up again. Went to the screen with iTunes logo and the cord. Second time my phone reatarted after installing a program to install my themes and boom again so now I have it to factory settings. Sigh frustrating.

  • edmund

    it worked great for me on my iphone 3GS 3.1.2 05.11.07

  • Tom

    I installed blackra1n with ease.
    However it disables my bluetooth earphone.
    Also whenever I have to reset my iPhone 3GS; I have to connect it to my iMac.
    So with these two downsides; I uninstall it.

    No need for it until improvement is made………

  • Detty

    I tried downloading blackra1n from blackra1n.com but when I run the program it keeps telling me “The program can’t start because ASL.dll is missing from your computer. Try reinstalling the program to fix the problem.” I keep reinstalling but its the same thing. Anyone know what I am doing wrong? Im running Windows 7, could this be the problem?

Back to top ▴