Jailbreak iPhone, iPod Touch, iPad

DevTeam worked hard for the last several hours and released jailbreak tool for iOS 4.2.1. It is redsn0w 0.9.6 b4.

As usual we remind all ultrasn0w unlockers please stay away from this official firmware. Wait for the ability to create custom 4.2.1 IPSWs that don’t update your baseband!

New redsn0w 0.9.6 b4 uses limera1n exploit and will successfully jailbreak all devices. The only problem is that it is a tethered jailbreak, which means you will have to plug it to a computer and rerun redsn0w on every reboot. This so called tethered or semi-tethered jailbreak. This condition applies to iPhone 3GS (new bootrom), iPhone 4, iPad, iPod touch 2G (MC model), iPod touch 3G and iPod touch 4G. Hackers are working hard to create untethered jailbreak for these devices. To use future untethered jailbreak you need to save SHSH keys for iOS 4.1 using TinyUmbrella utility or directly in Cydia.

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.

You can download RedSn0w 0.9.6 b4 here.

Geohot, the famous iPhone hacker and the creator of different jailbreak and unlock utilities (purplera1n, blackra1n and blacksn0w), is now working on a new jailbreak utility. It will support untethered jailbreak for all devices with the latest bootrom and the latest firmware. This includes iPhone 3GS and iPod Touch 3G.

Here is what Geohot writes in his blog:

The jailbreak is all software based, and is as simple to use as blackra1n. It is completely untethered, works on all current tethered models(ipt2, 3gs, ipt3), and will probably work on iPad too.

Don’t ask about a release date. You won’t make it happen any sooner.

It is still unclear if he used one of the recent iPhone Safari hacks to gain control of the device or if this is something else.

Here is a teaser video:

A few hours ago we wrote about new group of hackers who claimed to have found a new exploit for the iPhone 3GS and iPod Touch with new iBoot. With this Gull1Hack utility you should be able to perform the untethered Jailbreak even on new devices. Here is a new demo video:

What do you think? Fake?