The iPhone dev team is continuously releasing updated versions of their jailbreak tool Redsn0w with including some new features so according to their official blog, the latest Redsn0w 0.9.11b4 completes the tethered jailbreak support for 5.1.1 on A4 devices and earlier, including proper “Stitching” and “Custom” creation of NO_BB IPSWs.
Download Redsn0w 0.9.11b4 for OS X
Download Redsn0w 0.9.11b4 for Windows
The iPhone Dev Team’s jailbreak tool Redsn0w 0.9.6b4 for iOS 4.2.1 is out there which is based on Geohot’s Limera1n bootrom exploit.
Redsn0w 0.9.6b4 for iOS 4.2.1 is tethered so the users of iPhone, iPod Touch and iPad must have to attach their devices with PC or Mac to boot into a jailbroken state each time if your device loses power or requires a reboot.
Warning: Folks who rely on ultrasn0w unlock must stay away from Redsn0w 0.9.6b4 and iOS 4.2.1.
Download Redsn0w 0.9.6b4 for Mac OS X
Download Redsn0w 0.9.6b4 for Windows
redsn0w 0.8 is out and it can jailbreak iPhone 3GS running on firmware 3.0. Just follow the step by step guide below to jailbreak your iPhone 3GS with redsn0w. You will need to first update/restore to the original iPhone OS firmware 3.0 on your iPhone 3GS by using iTunes 8.2 before proceeding with the following steps:
Browse to the Original iPhone firmware OS 3.0 .ipsw file for iPhone 3GS . Check the links below to download them.
redsn0w will then verify to see if the .ipsw is valid.
Now redsn0w will automatically patch the original file.
Only check on “Install Cydia” to jailbreak [...]