iOS 3.1 Un-Tethered vs. Tethered Jailbreak

Discussion in 'iOS Jailbreak & Cydia' started by apple10, Mar 5, 2010.

  1. apple10

    apple10 Member

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    {TUTORIAL} Un-Tethered vs. Tethered Jailbreak

    Un-tethered v. Tethered Jailbreak

    If you have any questions regarding what a Tethered or Un-tethered jailbreak means, please read this first before posting any questions.

    Tethered Jailbreak:



    A tethered jailbreak means that once your iPhone is successfully jailbroken with blackra1n, you'll need to connect your iPhone to your computer and rerun blackra1n* if you ever need to reboot your iPhone or your iPhone loses battery charge.

    What you'll see when you reboot your iPhone (if you're tethered) is the iTunes and USB picture. Once you get this, simply open up blackra1n and press "Make It Ra1n." This WILL NOT re-jailbreak or restore your iPhone, all it is doing is booting back up your iPhone for you.

    You will require a tethered jailbreak if you have the NEW bootrom version. The OLD iBoot version was 359.3 and the NEW version is iBoot 359.3.2. There are a few methods to check which iBoot version you have.

    Method 1 (Serial Number Method):

    You can get a very good idea if your iPhone requires a tethered jailbreak by looking at the 3rd, 4th and 5th numbers in your serial number. If your serial number digits are "939" OR LOWER, you're safe. If you're serial number digits are "940" or HIGHER, you run a high chance that your iPhone will require a tethered jailbreak.

    Some people are reporting that they've been able to successfully jailbreak without having a tethered jailbreak with a serial number of 940 and higher. While this is rare, it apparently is happening.

    The serial # check can also be the first 2 letters in the model number. MA and MB are untethered, MC is tethered.**

    Method 2 (Using DFU Mode):

    Windows:

    1. Put your iPhone into DFU Mode
    2. Right Click on My Computer > Properties > Hardware (tab) > Device Manager
    3. Select the plus arrow for "Universal Serial Bus (USB) Controller"
    4. Find "Apple Mobile Device USB Driver", right click and select Properties
    5. Go to "Details" and find "Device Instance ID"
    6. Scroll through the string and you'll eventually find the bootrom version (iBoot)
    7. If it's 359.3 you DO NOT require a tethered jailbreak. If it's 359.3.2 you DO require a tethered jailbreak.

    Mac:

    1. Put your iPhone into DFU Mode
    2. Open "System Profiler" and go to Hardware > USB (menu on left)
    3. At the top right under “USB Device Tree Panel” click “Apple Mobile Device (DFU Mode)”
    4. In the upper right corner look for the information “string on the Serial Number.”
    5. At the bottom you will find the description BootRom version (iBoot).
    6. If it's 359.3 you DO NOT require a tethered jailbreak. If it's 359.3.2 you DO require a tethered jailbreak.



    Un-tethered Jailbreak:

    This is naturally quite the opposite. You have an untethered jailbreak if you reboot your iPhone with no issues.


    If you have any questions, please post them here or re-read this thoroughly.

    Note: If it says iPhone, assume it means iTouch, too.

    CREDITS
    *J-Phone​

    **b-mac 39​
  2. kingcoolryan

    kingcoolryan Member

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    hmm interesting good job
  3. b-mac 39

    b-mac 39 Well-Known Member

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    The serial # check can also be the first 2 letters in the model number. MA and MB are untethered, MC is tethered.
  4. ihax_ipt

    ihax_ipt Banned

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    This should be stuck. Good thread.
  5. studangerous

    studangerous Super Moderator Emeritus Staff Member

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    tagged as tutorial
  6. J-Phone

    J-Phone Active Member

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    "A tethered jailbreak means that once your iPhone is successfully jailbroken with blackra1n, you'll need to connect your iPhone to your computer if you ever need to reboot your iPhone or your iPhone loses battery charge."

    you got it wrong there, you have to rerun blackra1n whenever you turnoff you ipod/iphone
  7. apple10

    apple10 Member

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    Thank you! ^^
    ------------------double post merged------------------
    Thanks. I'll update the thread.
    ------------------double post merged------------------
    Wow. Thanks. Tagged a s a tutorial on my first day. Thank yo very much.
    ------------------double post merged------------------
    I will fix that. Thanks.
  8. SoBe

    SoBe Banned

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    very nice.
  9. apple10

    apple10 Member

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    Thank you!

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