Below you can find links to download PwnageTool, a utility released by the iPhone Dev-Team to build custom IPSWs that jailbreak the iPhone, iPad, and iPod touch.
These are instructions on how to perform an untethered jailbreak of your iPhone 4 on iOS 5.0.1 using PwnageTool for Mac. PwnageTool will let you customize your IPSW to prevent baseband updates and include Cydia packages.
Make a folder called “Pwnage” on the desktop. In it, you will need a couple of things. PwnageTool 5.0.1 which can be download from here.
You will also need the 5.0.1 iPhone 4 firmware which can be found here.
When downloading the IPSW file, it is best to download it with Firefox since Safari often auto extracts it!
These are instructions on how to dump the SHSH blobs of your current firmware even if Apple is not signing.
For instance, you can dump the SHSH of the current firmware on your device, so long as the device is susceptible to the Limera1n jailbreak (Everything but the iPad 2) Apple does not have to be signing the SHSH in order for you to dump the blob.
*Note the iPod Touch 2G and iPhone 3G will not work since they will always be jailbreakable. The iPad 2 will not work because it is not susceptible to Limera1n. A jailbreak is not needed for this.
iPhone Dev Team has released a bundle for PwnageTool for Mac and iH8sn0w has also released Sn0wbreeze 2.7.2 for Windows to jailbreak (untethered) Apple TV 2G Software 4.2.2.
Apple released Apple TV 2G Software Update 4.2.2 (iOS 4.3 – build 8F305) to fix some minor bugs and also add an audio output setting for switching to 16-bit audio for compatibility with some TVs and AV receivers.
Dev Team has provided the following details on their blog:
Apple released a minor update to iOS 4.3 for AppleTV2G (the IPSW name still says 4.3, but the build version changed from 8F202 to 8F305). @i0n1c was once again able to quickly port his original 4.3.1 untether (the exploit that wouldn’t die!) to this version.
Apple will be releasing iOS 4.3 on March 11 and seeded iOS 4.3 GM to developers of iOS developer program few days back.
If you’re wondering if iOS 4.3 can be jailbroken then the good news is that iOS 4.3 GM has already been jailbroken using PwnageTool 4.2 that iPhone dev team had released to jailbreak iOS 4.2.1.
DjayB6 has released unofficial custom bundles for iOS 4.3 GM for iPhone 4, iPhone 3GS and iPad that need to be used along with PwnageTool 4.2, Universal Ramdisk Fixes and tetheredboot utility to jailbeak iOS 4.3.
The unofficial release of PwnageTool for jailbreaking iOS 4.0.2 is now out in the wild. It can jailbreak iPhone 3GS (with old bootrom only) using iOS 4.0.2 custom firmware. There is of course no need to update to iOS 4.0.2 if you have iOS 4.0.1 (jailbroken using JailbreakMe) and PDF Patch installed from Cydia. But in case you have updated to iOS 4.0.2 accidently on your iPhone 3GS (with old bootrom), you can jailbreak it again using this version of PwnageTool for Mac.
After releasing Ultrasn0w 0.93, their software solution to unlock iOS 4 baseband 05.13.04 and also all basebands since iPhone OS 3.0, iPhone Dev Team have just released PwnageTool 4.0.
PwnageTool 4.0 for Mac will allow iPhone 3G and iPhone 3GS (old bootrom) users to update and jailbreak their iPhone with iOS 4.
The iPhone dev team has published the following details on their blog about PwnageTool 4.0 so please read it very carefully: