How to Untether Your iOS Jailbreak (Mac) [4.2.1]

How to Untether Your iOS Jailbreak (Mac) [4.2.1]

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These are instructions on how to untether your jailbreak of iOS 4.2.1 using the iPhone Dev-Team's 'backup plan' method on Mac OS X.

Currently this beta is limited to iPhone4, iPad, and iPod touch 4G. Bluetooth functionality is disabled for the time being until some issues are resolved.

Requirements:
You will need to have access to the iOS 4.2b3 ipsw and your iOS 4.2b3 SHSH blobs saved. You also already need to be jailbroken on iOS 4.2.1. MAKE SURE YOU BACKUP BEFORE ATTEMPTING THIS AS IT IS A BETA!

Step One
Create a folder called Pwnage on your desktop and in it place:
-
- iOS 4.2.1 ([url=https://www.iclarified.com/entry/index.php?enid=750 new=true]iPhone
, iPad, iPod touch)
- iOS 4.2b3 *Only iPhone developers have legit access to this firmware
How to Untether Your iOS Jailbreak (Mac) [4.2.1]

Step Two
Double click the RedSn0w archive to extract it. Then launch RedSn0w from the extracted folder.
How to Untether Your iOS Jailbreak (Mac) [4.2.1]

Step Three
Click the Browse button
How to Untether Your iOS Jailbreak (Mac) [4.2.1]

Select the iOS 4.2.1 ipsw from the Pwnage folder on your Desktop and click Open.
How to Untether Your iOS Jailbreak (Mac) [4.2.1]

Click the Next button to continue.
How to Untether Your iOS Jailbreak (Mac) [4.2.1]

RedSn0w will now prepare the jailbreak data.
How to Untether Your iOS Jailbreak (Mac) [4.2.1]

You will now be presented with a list of checkboxes.
How to Untether Your iOS Jailbreak (Mac) [4.2.1]

Select Jailbreak Monte (untether) from the list of checkboxes. You will be asked to select the iOS 4.2b3 ipsw from the Pwnage folder on your desktop then click Open. Click Next to continue.
How to Untether Your iOS Jailbreak (Mac) [4.2.1]

How to Untether Your iOS Jailbreak (Mac) [4.2.1]

Please plug your iPhone into the computer and make sure its OFF then click the Next button
How to Untether Your iOS Jailbreak (Mac) [4.2.1]

RedSn0w will now guide you through the steps to get into DFU mode. You can find more help with DFU mode here
How to Untether Your iOS Jailbreak (Mac) [4.2.1]

Hold down both the Home button and the Power button for 10 seconds.
How to Untether Your iOS Jailbreak (Mac) [4.2.1]

Release the Power button and continue holding the Home button until RedSn0w detects the device.
How to Untether Your iOS Jailbreak (Mac) [4.2.1]

RedSn0w will prepare Jailbreak Monte files, exploit with Limera1n, Upload RAM Disk and Kernel, and Send Jailbreak Monte files.
How to Untether Your iOS Jailbreak (Mac) [4.2.1]How to Untether Your iOS Jailbreak (Mac) [4.2.1]

RedSn0w will inform you when it has completed successfully.
How to Untether Your iOS Jailbreak (Mac) [4.2.1]

Vaness - January 28, 2011 at 9:49am
Can i use this tutorial to untether jailbreak my iphone 4 4.2.1 (already tether jailbroken using redsnow) if my SHSH on cydia only says 4.2.1 above the welcome to cydia screen? help please, thank you
rakeshdosii - January 24, 2011 at 12:52am
windows version.....????
Stevo - January 17, 2011 at 5:08pm
Process is fairly simple if all the steps are followed, my skype still wasn\'t working it spat me back out to springboard and I had to use skype, there was no way without it. After hanging up a phone call froze badly needed a hard restart, said fcuk it went back to stock 4.2.1 makes me wanna buy apps now, nooooo
Deepak - January 5, 2013 at 11:30am
I appreciate what they do codeinsring that its free, but I'm fine at 4.1 for now. Why's there always a big rush for the Dev team and Geo hot to jailbreak the next firmware? Unless you just bought a new device and can't unlock its not that big of a deal. I mean Apple makes new enhancements and adds more functionality, but nothing that groundbreaking from one release to the next, at least nothing that makes me so impatient that I blog on the net complaining about not get the latest jailbreak from guys who do this entirely for free, thats just crazy. I am a little impatient for an unlock, but since tmobile changed their unlimited data plan to 200mbs I don't really care any more.
Txdevildawg - January 10, 2011 at 11:27pm
How long is it suppose to be stuck at \"exploiting with limera1n\"? My iPhone 4 has been on screen for over 10 mins, using redsnow b6
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