Downgrade 4.0.2 Firmware to 4.0 / 4.0.1 on iPhone & iPod Touch

Easy way to downgrade the 4.0.2 firmware for the iPhone and iPod Touch back down to any firmware.

Only catch is that you must have saved your SHSH file on the firmware you want to downgrade to. (You probably did this if you were jailbroken on that firmware. If not, you would have saved it with TinyUmbrella software.)

If you have a Mac, use this guide for the first steps of the video:
http://www.ihackintosh.com/2010/08/downgrade-ios-4-0-2-to-4-0-1-for-iphone-4-...

To get all firmware files- http://www.felixbruns.de/iPod/firmware/

If your firmware file comes in a .zip, use this video:
http://www.youtube.com/watch?v=Cn5cocKbFj0

The directory: C:\Windows\System32\drivers\etc\

The text needed to be entered-
74.208.105.171 gs.apple.com

How to Run Notepad in administrator to edit the hosts file:
Click on Start, Accessories, right-click on Notepad, and click "Run as Administrator." Then drag and drop the hosts file into Notepad and proceed.

IF YOU GET ANY ERROR INVOLVING "The iPhone/iPod could not be restored. An error occurred," THEN DOWNLOAD TINYUMBRELLA AND KICK OUT OF RECOVERY MODE!! (Explained in video)
TinyUmbrella- http://thefirmwareumbrella.blogspot.com/

To jailbreak 4.0 and 4.0.1 after this, watch this:
http://www.youtube.com/watch?v=aZj9ZtD9tZk

Place for updates and fun (TWITTER)- http://twitter.com/itouch4life165
Place for all help (FACEBOOK)- http://www.tinyurl.com/ipt4l165-FB/
Place to win awesome prizes easy and legit (SWAGBUCKS)- http://bit.ly/VpU1n
What to do if you liked this video:
SUBSCRIBE, LIKE, COMMENT! Thank you so much!

-ipodtouch4life154
Arjun

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[Streamlid]

4:00 4:03 - HARD EVIDENCE THAT UR GAY.

[NastyBloOdLust]

MEGAN FOX!!

[nickjonaslover694xxx]

@Streamlid why ? :P

[TheRedheadRedneck]

I keep getting en error when i try to restore it to 4.0.1 im at 4.3.5 right now

[MrSmokethatbitch]

i have 4.2.1 how i jailbreak it

[EmpireGamerz]

But, i have a regular peace-of-shit 4.0.2 IPOD.... So you're saying i can't if it's normal and not Jailbroken? :,(

[EpicSwed]

Can't i downgrade my iphone 4 if i haven't jailbroken it before?

[UrboyJDH]

@ghettoblastah14 *coughs* McDonalds...

[TzRxHD]

ive never jail broke be4 and dont know what it is so can any one help i dont hav mac if u say get tinyumbrella

[lpvijaykumar]

will it worked for You Successfully?