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Downgrade from iOS 4.2.1 or 4.1 or 4.0.2 to 4.1/4.0 / 4.0.1 on iPhone & iPod Touch with a PC

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Published on Aug 16, 2010

http://JohnsiPhone.com Follow me on Twitter: http://Twitter.com/JohnsiPhone1

Download 4.0.1 at http://www.felixbruns.de/iPod/firmware/

enter this into notepad - 74.208.105.171 gs.apple.com

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Comments • 1,031

ArianaGrandeVEVO '
I Have a Ipod touch 2g I Updated it to 4.2.1 And when i went to Jailbreakme.com/star It says i need to downgrade it to 4.0 And it keeps giving me errors whenever i try to!
princess  Caden love
Thanks man awesome tutorial!!!
Mario Săpunaru
My iPhone are closing at 8 second. Why can I do?
Ibrahim Ilsignor
Try this and see how the magic workks guys, it gives you about 50$ For free and if you keeping download promotions you get more gift cards. http://featu.re/MSN9EG 100% working on iOS/android
Muzza Jay
for everyone with the 3149 error, restore itunes to a previous version by right clicking on it then clicking properties, from their click on previous versions and click on one before you made the changes to the host file. This worked for me so i hope it does for you
Haider TakinOver
I am getting error 3194 
Haider TakinOver
The downgrade didnt work could you help me out please currently i guess there isnt an ios on my phone thank you.
Mario Gencarelli
Damn error code 3194. Now what do i do?
Myles Osgood
Howd you do it?
Skylr Johnston
I did all that and it still didn't work 
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