How to Jailbreak 4.2.1 iPod Touch, iPhone and iPad (untethered) with redsnow. This jailbreak is for non MC models only.
Must Download:
#2 Redsn0w – http://jailbreaktools.com/download-jailbreak-software-windows-redsn0w-0.9.6b6.html
Step 1:
Restore idevice in iTunes Open iTunes | Plug idevice in computer | Hold Shift | select firmware (first download) | Restore
Step 2:
Power of device with cable still connected.
Step 3:
Go to redsn0w-0.9.6b6 folder (#2 download) and place redsnow into desktop. Right click, run as administrator.
Step 4:
Browse, select (#1 download again), follow steps on Redsn0w. Wait until idevice has full booted. Find the cydia app already on your idevice.
Your idevice is now jailbroken!
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