iOS 4.2 is expected to drop within some time as Apple has to deal with some serious flaws like Lock Screen and Day Light Time Savings bugs. iOS 4.2 Beta 3 expired some days ago but Apple has not yet seeded expected iOS 4.2 GM candidate to developers which may result in a Final release of iOS 4.2. For the time being, iOS 4.2 Beta 3 is available for developers and some enthusiast users to try.
Jailbreak App developers may need to test their apps’ compatibility with iOS 4.2. redsn0w 0.9.6 b2 has been revealed which incorporates Limera1n exploit as well. If you are looking to jailbreak iPhone 3G or iPod Touch 2G, you can use redsn0w 0.9.6 b2.
Caution: This information is only intended for developers with UDID. You may encounter some bugs on a jailbroken iOS 4.2 devices. A prominent one is that Cydia is not compatible with iOS 4.2. Proceed at your own risk to jailbreak iOS 4.2.
- You should have latest iTunes. [Link]
- Download redsn0w 0.9.6 b2 for Windows or MAC
- Grab iOS 4.1 and iOS 4.2 Beta 3.
- Update iPhone 3GS or iPod Touch 2G to iOS 4.2 Beta 3.
- Run redsn0w and browse to the place where iOS 4.1 is located

- Switch off iPhone or iPod Touch and connect with computer.
- To connect iDevice into DFU mode
Hold Power button and while holding Power button Hold Home Button for 10 seconds.
After Few seconds release Power button while still Holding Home Button.
Release Home button when Installation begins.
Once the device is in DFU mode, redsn0w will start installation. After the installation is finished, the device should restart and it will be running jailbroken 4.2 firmware.
Update 6: Sn0wbreeze will likely support tethered iOS 4.2 jailbreak for OTB device.
Update 5: Cydia Update will be pushed after iOS 4.2 is revealed in public.
Update 4: iPhone Dev Team asks to prepare for iOS 4.2 Jailbreak and Unlock.
Update 3: Cydia is saving SHSH Blobs of iOS 4.2 Beta for untethered jailbreak.
Update 2: Early untethered 4.2 jailbreak will be a treat for those who have saved SHSH Blobs. [How TO]
Update 1: Apple release iOS 4.2 GM Candidate and you can jailbreak 4.2 GM on iPhone 4/3GS/3G, iPod Touch 4G/3G/2G, and iPad
Relevant Information:
iOS 4.2 Jailbreak | Jailbreak iPhone 4 4.2 | Jailbreak iPad 4.2 | Greenpois0n 4.2 | Jailbreak iPhone 3GS 4.2


{ 2 comments… read them below or add one }
will this work for MC models??????
Will work but “tethered”