Download RedSn0w 0.9.6rc7 to support ‘One click Tethered Boot’ for iOS 4.2.1 [Mac, Windows, Download Link]

iPhone Dev Team has released a new version of RedSn0w for all Tethered Jailbreak of iOS 4.2.1 which will do a ‘once click boot support’. With RedSn0w 0.9.6RC7 Using command-line arguments, you can now bypass the screens you’d normally see as you use redsn0w to “Just boot tethered for now”. For those who don't know about Redsn0w 0.9.6rc7, With Redsn0w 0.9.6rc7, you can use command-line arguments so you can  bypass the screens you’d normally see, As you use redsn0w to “Just boot tethered for now” when your device is rebooted.

According to iPhone Dev Team Official Blog:

We’ve updated redsn0w to include “one-click” support for those of you running the tethered 4.2.1 jailbreak.  Using command-line arguments, you can now bypass the screens you’d normally see as you use redsn0w to “Just boot tethered for now”.
The available command line arguments are:
-j to ask redsn0w to “Just boot now tethered for 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
For example, to get redsn0w for Mac to do a tethered boot of an iPod touch 4G jailbroken at 4.2.1:
open ~/Desktop/redsn0w.app —args -j -i ~/Desktop/iPod4,1_4.2.1_8C148_Restore.ipsw
This assumes both redsn0w and the IPSW are on your OS X desktop, so modify as necessary!  Included in the zip is an example script file that you can double click on to launch redsn0w like this (the Windows example assumes everything is in C:\). (Mac users: please remember to change the permissions of your custom *.command files to allow execution.)
This should help ease the pain of the tethered jailbreak until @comex comes up with a 4.2.1 untether (or for those of you with legit access to the 4.2b3 IPSW, until the “Jailbreak Monte” untether is out of beta)!

• PLEASE UPGRADE TO iTunes 10.1 FOR BEST RESULTS
• WINDOWS 7 USERS SHOULD RUN redsn0w IN “XP COMPATIBILITY” MODE

Make sure you’re using a USB 2.0 port

Please note that the iPhone Dev Team is working on untethering iOS 4.2.1 jailbreak so you don’t need to connect your iOS device every time it reboots. They are have released Redsn0w 0.9.7 beta for Mac OS X, you can try the latest release of this beta but you need iOS 4.2 beta 3 hashes and IPSW file.

iPhone Dev Team has also release a beta testing version of RedSn0w 0.9.7 to Untethered Jailbreak iOS 4.2.1 for Mac Only and soon they will release a Windows version too. If you have Mac and have iOS 4.2b3 shsh hashes so you can try Untethered Jailbreak of iOS 4.2.1 here. 

Download RedSn0w 0.9.6rc7 for Windows Here

Download RedSn0w 0.9.6rc7 for Mac Here

You can download iOS 4.2.1 Firmware file here.

And download the latest version of iTunes Here

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