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iOS 4.2.1 Jailbreak Released; Unlock Shortly

- By - Source : Tom's Guide US

Jailbreak freedom for the latest software.

Apple yesterday released the iOS 4.2.1 update for its line of touch screen devices, and hackers wasted no time in getting the jailbreak software released to the internet community.

The iPhone Dev-Team have released a new version of redsn0w for both Mac OS X and Windows that will jailbreak all iOS 4.2.1 compatible devices. Depending on which device, however, it could result in a 'tethered' jailbreak. This means that anytime the device loses power or gets rebooted, it will have to be reconnected to a computer again before returning to the jailbreak state.

The exception to this is old devices such as the iPhone 3G, iPhone 3GS models with older bootrom version, and non-MC iPod touch 2G. These devices are still vulnerable to older exploits and will still retain their jailbreak even after a power cycle.

Those who rely on a carrier unlock should steer clear of this jailbreaking solution for now, as there is no way of retaining the unlocked state through the redsn0w software.

Read more at the Dev-Team blog.

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rantoc 11/23/2010 2:37 PM
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This is a good start, allow the user to actually use THEIR purchased hardware as they see fit. Only odd that they have to void warranty in order to be able to free it from the grasp!

uruquiora 11/23/2010 2:41 PM
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user : "allow the user to actually use THEIR purchased hardware as they see fit"
Steve: " what ?? what ??? i can't hear you ! say it again ????!!!"

g00fysmiley 11/23/2010 3:00 PM
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and how many people bought the phoen OFF contract? not to play devils advocate but if you buy a phoen on contract through carrier subsidies of coarse they aren't gonna want you to unlock the device while under said contract time.

solution is just use things like virgin mobile or boost if thats hwo you feel and if you wanna bring an unlocked device like this article says unlock it yourself and accept that the warrenty is gone

Anonymous 11/23/2010 3:59 PM
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i bought my iPhone4 without a contract, cost me some cash upfront but in the long run i don't have any ridiculous monthly fees.
the best part: the phone is sim unlocked, making it a fully functional gadget anywhere in the world, without any limitations by any carrier (yes, internet-tethering, i'm looking at you.)

i cannot understand why everyone is such a sheep and goes for the contract rather than the truly free variant. maybe $800 seems a bit much for a phone right upfront, but then you shouldn't be getting the phone in the first place, as it will cost more over the next 12 months...

Anonymous 11/23/2010 5:44 PM
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@ElectricalFireStorm

and yet apple will still brick it if you ever jailbreak it

techguy378 11/23/2010 8:15 PM
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rantoc :
This is a good start, allow the user to actually use THEIR purchased hardware as they see fit. Only odd that they have to void warranty in order to be able to free it from the grasp!


I'm assuming you purchased your iPhone in the USA. If this is true then you agreed to a lifetime contract that says you must use the device on AT&T and nobody else. It doesn't matter if you pay full price or get a carrier discount. Nobody forced you to buy an iPhone so get over it.

thillntn 11/23/2010 8:38 PM
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waiting on a unlock, I still like the picture above :)

liveonc 11/23/2010 8:53 PM
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What was that honey marinated chicken fried in extra virgin olive oil, have to do with iOS 4.2.1???

victorintelr 11/23/2010 11:13 PM
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Now I can say this:
iPhones have become as famous as Windows.

vant 11/24/2010 2:34 AM
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Getting pass the warranty being 'voided' is easy. Simply restore the software. Duh? It's not like jailbreaking is a one way street. Android users root (jailbreak) their phones also, same situation.

techguy378 11/24/2010 7:34 AM
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vant :
Getting pass the warranty being 'voided' is easy. Simply restore the software. Duh? It's not like jailbreaking is a one way street. Android users root (jailbreak) their phones also, same situation.


Many Android phones can be rooted while keeping the bootloader locked. There is an app in the Google Marketplace that lets you do this on the Samsung Captivate. This way the warranty remains intact and you can install whatever variant of Android you want on the device.