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How to Guide to Jailbreak iOS 4.2.1 with Greenpois0n RC 6 (Unteathered)

davidmcc

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I would like to know how do i upgrade the jailbreak from 4.1 to 4.2.1, i tried both Greenpoison RC5 and RC6 and it goes through the motions of jailbreaking but it remains on 4.1?

I "shift restore" the 4.2.1 firmware and got the expected 1013 error in itunes i then went and used RC6 and it completes the jailbreak but the phone stays at 4.1.

I'm new at this but it should be doable.

When in Itunes checking for updates results in none being found.

Unless your preserving your baseband you don't need to shift restore. Just restore normally in iTunes to 4.2.1 (4.2.6 if on verzion) then jailbreak using greenpoisi0n rc6.

If your still getting error 1013 see this thread...

The file name is:iPhone3,1_4.2.1_8C148_Restore.ipsw is this right? For iPhone 4
 
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iGaz

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Yes, but where did you get it from?

Personally I wouldn't trust any ipsw except from apple directly or through iTunes... (it's the same file)
 

davidmcc

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Yes, but where did you get it from?

Personally I wouldn't trust any ipsw except from apple directly or through iTunes... (it's the same file)

I got it from Apple, i'm stuck on 4.1 Jailbreak and i can't upgrade to 4.2.1 even after changing the "hosts" file and this is on 2 computers. I can't get by this "unknown error 0xE8000013" error in Itunes.

"I managed to finally upgrade to 4.2.1 and jailbroke it using GreenPoison"
 
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Gregoris

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What’s in a name?
What’s in a name? Well in the case of an HFS volume name on iOS, an untether exploit — as the Chronic Dev Team revealed last week with an untether for the 4.2.1 jailbreak, which had previously been a tethered JB for most recent devices since 4.2.1’s release in November. With their permission, we’ve incorporated their 4.2.1 “feedface” untether into today’s PwnageTool 4.2. This means iPhone unlockers can safely restore to a custom 4.2.1 pre-jailbroken IPSW and retain their current baseband and unlock. PwnageTool also supports all the other 4.2.1 devices other than iPod touch 2G:

iPhone3G
iPhone3GS
iPhone4
iPhone4-Verizon
iPod touch 3G
iPod touch 4G
iPad
AppleTV 2G
PwnageTool also includes two very recent improvements to the 4.2.1 JB: iBooks was just fixed by @comex and @pushfix last night so that it works as intended on DRMed books, and the wifi problem on AppleTV 2G was fixed by @nitotv, @DHowett, and @saurik. Both of these fixes will also be available in upcoming Cydia package updates, so if you’re already jailbroken you can wait for those updates rather than restore and jailbreak again.

The various components to the 4.2.1 untether (including a second exploit involving Mach-o headers) were worked out by 0naj, posixninja, and pod2g, and a nice writeup by 0naj is available on the wiki. The actual injection method uses geohot’s limerain exploit for most devices. And even though 4.3 is just around the corner, the exploit used has already been closed in the latest 4.3 betas, so it made sense for the 4.2.1 untether to be released when it was. It also appears that a security researcher named @i0n1c has a 4.3 untether ready for when Apple releases the final 4.3 FW, so it may not be a long wait at all with 4.3!

Feel free to ask for help in our comments section. And thanks as always to our terrific moderators Confucious, sherif_hashim, dhlizard, Frank55, and subarurider!

Official Bittorent Releases

PwnageTool_4.2.dmg -> PwnageTool_4.2.dmg.6176918.TPB.torrent

SHA1 Sum = af365f5de19d7ee19cbe1c67b2f226996a46b3ac

Unofficial Mirrors

The following links are unofficial download mirrors, you download these archives at your own risk, we accept no responsibility if your computer explodes or if it becomes part of a NASA attacking botnet or even worse if your hands fall off mid-way during the use of these files. We do not check these links and we accept no responsibility with regard to the validity of the files, the other content that these links may provide or with the content that is on the third-party linked site.

Always check the files that you have downloaded against our published SHA1 hash.

We would prefer that you downloaded the official bittorrent release that is linked above, but you are welcome to try these if you really must.

Mirror owners should email direct dmg download links only (no rapidshare type sites please and please make sure that your web-server can serve DMG MIME types) to blog@iphone-dev.org — please don’t place mirrors in the comments as they will be deleted.

http://www.hostmyapple.com/pwnagetool/PwnageTool_4.2.dmg
http://www.macniouz.fr/softwares/PwnageTool_4.2.dmg
http://dl.twiios.com/pwnagetool/PwnageTool_4.2.dmg
http://public.stuff.hu/pwnagetool/PwnageTool_4.2.dmg
http://crzz.co/dl/PwnageTool_4.2.dmg
http://www.iphonews.eu/PwnageTool_4.2.dmg
http://www.yourdailyapple.net/downloads/PwnageTool_4.2.dmg
http://applerama.ru/pwnagetool_4.2.dmg
http://riccardomastellone.com/files/PwnageTool_4.2.dmg
http://up.iNeal.ME/PwnageTool_4.2.dmg
http://claytonbraasch.com/downloads/PwnageTool_4.2.dmg
http://www.zaone.ro/PwnageTool_4.2.dmg
http://maclovr.com/PwnageTool_4.2.dmg
http://cdn.nspwn.com/pwnagetool/PwnageTool_4.2.dmg
http://stantheripper.com/PwnageTool_4.2.dmg
iPhone site » iBloo.net - i - iPhone/iPod/iPad.
http://smotrikino.net/PwnageTool_4.2.dmg

apparantly all that is not 5 characters
 

iGaz

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@paliometoxo

Anything in square brackets doesn't count towards character count, such as quotes and links...

what is the Home button and sleep/awake button?

The home button is the only button on the front of your phone. The sleep button is the one on the too that you use to lock you phone or turn it on/off...
 

jay106

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Hi can you help
I have a brand new Iphone 4 on 4.2.1 sim locked to 02 can i use the above to jailbreak.

Thanks Jay
 

jokerman

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i have dismissed getting updated daily or even weekly since 2011....

the unlock programmers are still waiting for ios 4.3 !

right ?
 

Reel Tight

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So I followed the directions and phone is still connected with a bunch of code on screen is this normal and how long does the jailbreak usually take on windows?
 

db1561

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And the Greenpois0n now also can work on verizon iPhone, I read a guide "How to jailbreak iOS 4.2.6 Verizon iPhone 4 with Greenpois0n on Mac" in iFunia news blog, but don't have a try yet~

It works and its very easy! Just follow the simple directions... It only took about 10 minutes.

I'm primarily doing it for MiWi. My summer place doesn't have internet access and unfortunately I need internet service from time to time.
 

qwerty

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If my iphone (4.1 & 02.10.04) has been unlocked by the network, will upgrading/restoring or jailbreaking it remove the unlock, or is the unlock now permanent?
 

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