Jailbreak and Unlock iPhone 3GS on iOS 6 Baseband 5.16.07 | iPhoneJailbreak.me

Jailbreak and Unlock iPhone 3GS on iOS 6 Baseband 5.16.07

September 21st, 2012 20 Comments

Stuck on iOS 6 with baseband 5.16.07 and found no way to unlock it? Read on as this may be the solution for you.

This will be a lengthy process so if you have an AT&T iPhone 3GS, you can save all the troubles and unlock it permanently using this.

First of all, please be aware that untethered jailbreak for iOS 6 is not yet available and baseband 5.16.07 can’t be unlocked.

However, it is still possible to unlock your iPhone by updating the baseband to 6.15.00 and then downgrade to 5.13.04.

Baseband 6.15.00 is an iPad baseband which can break your GPS. Read the risks here. In order to downgrade to 5.13.04, you must update to 6.15.00 first.

Confusing? That’s OK. Read on…

WARNING: If you have the new iPhone 3GS 8GB, read this first. Othewise, by installing the iPad baseband, you will brick the chip and there’s no software fix available!

Did you read and understand all the risks? OK, let’s proceed.

Strangely, Apple is still signing iOS 4.1 which you need to downgrade your iPhone 3GS to. The reason why you need to downgrade to iOS 4.1 first is so that you can update your baseband to 6.15.00, and then downgrade to 5.13.04.

[Final warning: Proceed at your own risks!]

Part 1: Downgrade to iOS 4.1

1. Backup your contacts, photos, apps etc. Remove your SIM card.

2. Download iOS 4.1 firmware for iPhone 3GS or from here.

3. Download redsn0w 0.9.8rc18 for Windows or Mac.

4. Download latest version of TinyUmbrella from here.

5. Remove iTunes and install iTunes 10.4.1 for Windows (32-bit) or Mac.

6. Put your iPhone into DFU mode. See YouTube video here.

7. Launch iTunes, connect your iPhone, hold down the SHIFT for Windows or Option for Mac while you click the RESTORE button in iTunes and select the iOS 4.1 firmware file you have just downloaded. If you get an iTunes error 3194, read here on how to fix it.

8. The restore will end with error 1015 and recovery loop on the iPhone, this can be resolved using the “Exit Recovery” button in TinyUmbrella.

Part 2: Installing iPad baseband 6.15.00

9. Start redsn0w 0.9.6rc18.

10. Browse for the iOS 4.1 firmware you just downloaded.

11. Select ‘Install Cydia’ and ‘Install iPad Baseband’. Warning: installing iPad baseband will break your GPS, if you have the new 3GS made after week 28 of 2011, it does not support the iPad baseband. We will downgrade to 5.13.04 later for GPS fix.

12. Follow on screen instructions to put your device into DFU mode to begin the jailbreak.

13. When the process is done, you will find that your iPhone is now jailbroken on iOS 4.1 with iPad baseband 6.15.00. To make sure you can always go back to iOS 4.1, launch Cydia and select ‘Make my life easier.’

Part 3: Downgrading to baseband 5.13.04 (GPS Fix)

14. Now download redsn0w 0.9.14b2 that can downgrade iPad baseband to 5.13.04 for Windows or Mac.

15. Launch redsn0w. Go to Extras >Select IPSW button in redsn0w to point to the original firmware you downloaded in Step 2.

16. Do a controlled shutdown of your iPhone (“slide to power off”).

17. Return to the first screen and click ‘Jailbreak’. Check the ‘Downgrade from iPad baseband’ checkbox, uncheck Cydia and click Next.

18. Redsn0w will start doing the downgrade and you will see ‘Flashing Baseband’ screen on your iPhone with the Pawnapple icon. DO NOT INTERRUPT your iPhone while baseband flashing is in progress.

19. When done, your iPhone will reboot itself and you will now have iOS 4.1 with baseband 5.13.04 that can be unlocked with ultrasn0w.

20. You may want to update to iOS 5.1.1 which has untethered jailbreak and can also be unlocked with ultrasn0w 1.2.7. Use this tutorial here (it’s for baseband 6.15.00 but will work for any baseband). You can only install iOS 5.1.1 if you have the SHSH saved on Cydia or locally.

If you’re happy with iOS 4.1 and would like to unlock it, skip to step 21 now.

Part 4: Unlock with ultrasn0w

21. Launch Cydia from Springboard (home menu).

22. Search for ultrasn0w on Packages in Cydia. If you cannot find it, add new sources by typing ultrasn0w repo:

repo666.ultrasn0w.com (with zero, not o).

23. Install Ultrasnow 1.2.7.

24. Reboot your iPhone.

25. Turn off 3G and insert your SIM card. It should pick up your mobile signal.

Not too difficult right? If you follow the exact instructions this will work 99%.

Good luck and leave your comments or questions below.

Did it work? Buy me a beer! Never required but always appreciated!

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Richard Ker

An IT specialist by day and an iPhone hardware repair specialist by night. Enjoys iPhone jailbreaking, unlocking and hardware hacks.

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20 Comments to “Jailbreak and Unlock iPhone 3GS on iOS 6 Baseband 5.16.07”

  1. Ankur says:

    I have a 3GS phone which i was jailbroken and unlocked using redsn0w. Now it is on 4.33 (8J2) and baseband 06.15.00.

    I want to upgrade it to Ios 6. Please help .

  2. carl says:

    redsn0w 0.9.14b2 closes after DFU and initiating installation of iOS 4.1….

  3. Powerfix says:

    i got an 3gs ( BB : 05.16.07 ) an did it, as you wrote it at the top of the site,
    Jailbreak works, but unlock not.

  4. Saqib J. says:

    Hey dude. You saved my iPhone. I was stuck in iO6 with bb 5.16. Now I installed iOS 4.1 and unlocked my phone.. Thank you so much. love you.

  5. joan says:

    can i puy 06.15.00 and use ultrasnow on ios 6>

  6. Pras says:

    This is instructions about 5.1.1 I don't see anything about 5.16.07 only the false claim of unlocking it.. Don't waste your time

  7. Panky says:


    I am having iphone 3gs with ios 4.1 (BB:06.15.00) jailbreakon with CYDIA
    It get shutdown some time itself.. even if battery is 40% 50 % and even some times on 60%
    It start only when it connect to some power source where usb charger or electricity.
    But when it turn on it shows me 50% battery renaming
    Can you help me in fixing this?

  8. Zeeshan says:

    I have ios6 on my iphone 3gs… BB is 5.16.07…. Everything works fyn… Its tethered jailbroken… The prob is it doesnt shows the mobile network… After inserting the sim it says no service… Plz help… Plz…

  9. I Believe says:

    Your way for Unlock and Jailbreak work correct… Thank you

  10. steven says:

    i hv iphone 3gs that i hv upgrade to ios 6.0,but after i upgrade my iphone dint work and no service,and then when i connect to i tune's,there write "NO SIM CARD INSTALL",can you help me how to fix this problem…thx..

  11. dao says:

    You have a good procedure. I think you applied it not less than 100 iphones, before writting these words.

  12. glenn says:

    this truly a great post!by the way i want to know if apple still signs ios4.1? beacause when i try to restore my iphone 3gs (6.0.1) itunes pops that" apple software update server is not available.try again later" something like that.. i will be very thankful if you reply! or here is my email glentamag@yahoo.com

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