iPod touch Downgrade from 4.2.1 to 2.2.1

JuegaBonito

macrumors newbie
Original poster
Mar 16, 2011
16
0
Hi,

I want to downgrade my iPod Touch 2. generation to its original firmware 2.2.1.
I downloaded the 2.2.1 from felixbruns.de and then tried to restore my iPod using that firmware.

The problem is that iTunes gave me an error and said that it was an unknown firmware (error 20).

Any other ideas on how to downgrade from 4.2.1 to 2.2.1?
 

JuegaBonito

macrumors newbie
Original poster
Mar 16, 2011
16
0
Ok, but I don´t want to mess up my Mac with installing an other version of iTunes.

Any other ideas? I heard something of TinyUmbrella. Would that be helpful?
 

Intell

macrumors P6
Jan 24, 2010
18,881
368
Inside
TinyUmbrella won't help. Are you using an MB model iPod Touch and not an MC model? I think the older version of iTunes is a requirement.
 

Spectrum Abuser

macrumors 65816
Aug 27, 2011
1,377
31
Why would you want to downgrade back to 2.2.1 in the first place? Nine times out of ten an application will require 3.1 at the minimum.
 

Merthyrboy

macrumors 6502
Jul 21, 2008
490
3
Could you set up another user on your mac and install the older version of iTunes on that so you don't mess up your main iTunes.