(adsbygoogle = window.adsbygoogle || []).push({}); For those of you who don’t know, Redsn0w 0.9.6b4 is based on Geohot’s Limera1n bootrom exploit which has already pwned all current iOS devices for life. The only problem is that it is a tethered jailbreak, which means you will have to boot it into a “jailbroken state” on every reboot. This so called tethered or semi-tethered jailbreak condition in Redsn0w 0.9.6b4 however only applies to the new devices like: iPhone 3GS (new bootrom), iPhone 4, iPad, iPod touch 2G (MC Model), iPod touch 3G and the iPod touch 4G. Old devices like iPhone 3GS (old bootrom), iPhone 3G and iPod touch 2G (Non-MC Model) can be jailbroken-untethered right now using this latest version of Redsn0w. So until and unless Comex of Spirit and JailbreakMe fame comes up with another untethered hack for iOS 4.2.1, the jailbreak we get for the newer devices will be tethered (or semi-tethered).

Redsn0w 0.9.6b4

NOTE: Those of you who rely on a carrier unlock MUST STAY AWAY from Redsn0w and iOS 4.2.1.

Follow the step by step instructions posted below to jailbreak iOS 4.2.1 with Redsn0w 0.9.6b4:

Step 1: Download iOS 4.2.1 for your version of iOS device.

Step 2: Update/Restore to iOS 4.2.1 firmware using the IPSW file you just downloaded via iTunes 10.1.

Step 3: Start Redsn0w 0.9.6b4 and point it to iOS 4.2.1 firmware to proceed with the jailbreak.




Step 4: Now select “Install Cydia” and click “Next”. Optionally (if available), you can also select any other option you like.


Step 5: Now make sure your device is both OFF and PLUGGED IN to the computer before you click “Next”.


At this stage you will be presented with a screen where you will have to quickly hold “Power” button and then while holding the “Power” button, you will now have to hold “Home” button too. Now after few seconds release “Power” button but keep holding “Home” button until installation begins.


Step 6: Sit back and enjoy while redsn0w will do all the rest for you. Once done, your iPhone or iPod touch will restart automatically and you will find it jailbroken on the latest iOS 4.2.1 firmware.

For iPhone 4, 3GS (New Bootrom), iPod touch 4G / 3G / 2G, iPad ONLY:
Step 7: Now from here onwards, whenever you want to do anything related to jailbreak like SSHing into your device, or running Cydia, you must first run your device in the so called “jailbroken state” on every reboot by using “Just boot tethered right now” option in Redsn0w.


Download links:
You must login or register to view this content. ::: Redsn0w 0.9.6b4 for Windows
You must login or register to view this content. ::: Redsn0w 0.9.6b4 for Mac
You must login or register to view this content. ::: iTunes 10.1 for Windows or Mac
You must login or register to view this content. ::: Ios software needed for jailbreak

This is a tethered jailbreak for most idevices, meaning for you that dont know mean if you turn your idevice off you have to use a computer ( basically re-jailbreak it) to turn it on again.

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1) iPhone 3g devices : Untethered jailbreak
2) iPhone 3gs
devices : if you have newer bootrom, your jailbreak will be tethered. If you have older bootrom, you will have untethered jailbreak.
3) iPhone 4 : Tethered.
4) iPod 3/4 : Tethered.
5) iPod 2 : MC model tethered, older model untethered.
6) iPad : Tethered.
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this is copy/pasted from here : You must login or register to view this content.

Guys if i were you i would wait till Greenpois0n RC5 to be released (very soon)

I don't understand if Apple made Jailbreaking Legal why they just dont allow theyre firmwares to be unthered jailbreaks.

Who even has this firmware lol..

Omg already posted like a month ago -.- +this is just copy and paste

This has been You must login or register to view this content. in the iPod/iPhone Discussion section. Sorry, but thread closed .