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(VIDEO TUTORIAL) How To Jailbreak iOS 4.2.1

This is a discussion on (VIDEO TUTORIAL) How To Jailbreak iOS 4.2.1 within the iPad Hacking forums, part of the Apple iPad Discussions category; [ame]http://www.youtube.com/watch?v=rIxCseIW7-4[/ame] Works On The Following iDevices: iPad *Tethered* iPhone 4 *Tethered* iPhone 3G *Untethered iPhone 3Gs Old Boot Rom *Untethered iPhone 3Gs New Boot Rom ...

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  1. #1
    iPad Fan!
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    Nov 2010

    (VIDEO TUTORIAL) How To Jailbreak iOS 4.2.1


    Works On The Following iDevices:
    iPad *Tethered*

    iPhone 4 *Tethered*

    iPhone 3G *Untethered
    iPhone 3Gs Old Boot Rom *Untethered
    iPhone 3Gs New Boot Rom *Tethered*

    iPod Touch 4th Gen *Tethered*
    iPod Touch 3rd Gen *Tethered*
    iPod Touch 2G MC Models *Tethered*
    iPod Touch 2G Non-MC Models *Untethered*

    The notion of a "tethered" jailbreak is pretty new to many people, so here's a quick rundown on what to expect:

    1. If you're on an iPhone3G, old-bootrom iPhone3GS, or non-MC Model iPod touch 2G, life is easy. redsn0w installed an untethered jailbreak and so nothing below applies.

    2. "Tethered" does not mean you cannot boot at all without PC/Mac assistance. If you have not installed any tweaks that hook into important programs like SpringBoard or CommCenter, your device will actually boot. However, jailbreak programs like Cydia won't work (and Cydia may still have a white icon). Also, certain built-in apps that had to be moved by Cydia will fail (Safari being the most noticeable example).

    3. If you've installed MobileSubstrate tweaks that hook into SpringBoard or other important programs, your boot will actually fail (you'll get stuck at the Apple logo). You need to use redsn0w to "Just boot tethered right now".

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  3. #2
    iPad Enthusiast!
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    Nov 2010
    nice vid bud but i'm gonna wait for the untethered JB.
    we are all noobs at 1 thing or another but if I can help a fellow noob that's good enough for me.

  4. #3
    iPF Noob
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    Jan 2013
    this video has been remove...

  5. #4
    Super Moderator
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    632 times
    Join Date
    Sep 2010
    Troon, Scotland

    (VIDEO TUTORIAL) How To Jailbreak iOS 4.2.1

    That's because this thread is from 2010 and is probably no longer worth watching, particularly since it was relevant to the iPad1 only!

    Please review our Tutorials and Guides section for relevant guides. If you are still running 4.2.1 on your iPad1, then you should probably be seriously thinking about updating to 5.1.1, rather than trying to jailbreak it

    With that, I shall close this thread.
    Last edited by f4780y; 01-31-2013 at 08:08 AM.
    15" MacBookPro with Retina Display 16GB 3.4GHz i7 256GB | iPad4 WiFi 32GB 6.1.2 (evasi0n) | iPad3 4G 64GB 6.1.2 (evasi0n) | iPad2 3G 64GB 5.1.1 (redsn0w) | iPad1 3G 64GB 4.3.3 (jbme) |
    iPhone5 32GB 6.1.2 (evasi0n) | iPhone4S 64GB 5.1.1 (absinthe) | iPhone4 32GB 7.0b2 (stock) | iPhone3G 16GB 3.1.3 (jbme) | iPod Classic 6G 160GB (stock) | AppleTV 2G 5.0.2 (seas0npass)

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