Downgrade firmware 2.2.1 to 2.2 Many users have accidentally upgraded to firmware 2.2.1 on their devices and they have lost their jailbreak. People repeatedly keep asking how to downgrade firmware 2.2.1 to 2.2 in the QuickPWN Forums.
vicon-sd posted a great guide on how to downgrade in the forums at this topic:
Upgraded to 2.2.1? Here’s how to downgrade!
Here is how you can downgrade from firmware...
by Hans at January 28th, 2009 at 08:01 pm 
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