RedSn0w One-Click Tethered Jailbreak For iOS 4.2.1 Released

Those of you who need to jailbreak one of the latest generation iDevices like iPhone 4 or iPod Touch 4G would have to be running a tethered jailbreak solution (the untethered version is still under testing). The iPhone Dev team have just added a bit of sophistication to this tool by introducing a one-click support to the software. Using this latest version, you may bypass the several screens that one may come across while tethered booting.

The one-click jailbreak tool offers a few command line arguments that can perform tasks such as

-j to ask redsn0w to “Just boot now”
-i <filename> to specify your reference IPSW
-o for old-bootrom iPod touch 2G and iPhone 3GS
-b <filename> to specify your own boot logo png

Do note that you will need a copy of RedSn0w (the tethered version) and IPSW on your hard drive. You can find the relevant files for download as well as the instructions on the Dev Team blog by clicking here.