The Dev Team has released an update for the popular PwnageTool which will jailbreak and unlock iOS 4.2.1 on iPhone 3G, 3GS, iPhone 4, iPhone 4-Verizon, iPod Touch 3G, iPod Touch 4G, iPad and AppleTV 2G.
The new PwnageTool 4.2 consists of a untethered jailbreak for all the above devices. In addition to allows users to jailbreak their devices, iPhone unlockers can also restore to a custom 4.2.1 IPSW and retain their current baseband and unlock. PwnageTool currently does not support iPod Touch 2G.
Well in the case of an HFS volume name on iOS, an untether exploit â€” 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 feedfaceuntether 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:
PwnageTool also pushes a fix for iBooks by @comex and @pushfix which fixes a bug so that it works as intended with DRM books along with fixing a WiFi problem on Apple TV 2G. All these updates will be available in the Cydia package updates.
For more information on the PwnageTool 4.2 release, and the download links visit the official Dev Team Blog.