Recently, Apple has previewed iPod Touch 4.0 firmware and beta version is available until WWDC 2010. Upgrading to iPod Touch 4.0 firmware surely have made you jailbreak and you have a less functional iPod Touch. There is some good news for users who are looking to jailbreak iPod Touch 4.0 as there is some solid proof. Till the availability of any jailbreak tool, users can downgrade their iPod Touch 3G/2G to an earlier firmware like 3.1.3/31.2. Here is an illustrated guide to assist you in downgrading iPod Touch 4.0 firmware to some previous firmware.

Function 1: Latest iTunes must be installed on your system.
Function 2: Attach iPod Touch to computer and turn it off. Now you have to start iPod Touch on 4.0 firmware in DFU mode.
- Press and hold the Home button and the Power button at the same time for 10 seconds.
- Release Power button while holding the Home button until system recognizes iPod Touch [3G/2G].
- Soon after iTunes will recognize you iPod Touch [3G/2G] as well.
Function 3: To downgrade iPod Touch 4.0, press option key [Shift on Windows] or [Alt on Mac] and click restore after selecting iPod Touch in iTunes sidebar. Then direct the iTunes to the location where firmware 3.1.3 or 3.1.2 exist. Relax, it will take 10-15 minutes to downgrade iPod Touch 2G/3G on 4.0 firmware.
Caution: If an error message like 1011, 1013, 1015 is encountered, ignore it.
Function 4: Download iRecovery for Windows or Mac. [Mac users should skip to Function 5]
- Windows users should install libusb filter before executing iRecovery. If you are on Windows 7, install this as Administrator and by selecting compatibility mode as ‘Windows XP (SP 2)’
Funtion 5: Mac users should start terminal and Windows users should start command prompt. Then navigate to the directory where iRecovery exists and execute it with following command and proceed as instructed
irecovery -s
setenv auto-boot true
saveenv
reboot
Function 6: Restart your iPod Touch (Press and hold the Home and Power buttons for 10 seconds).
Caution: If an error message like 1601, 1602, 1600 is encountered, start again from function 2.
If everything goes smoothly then you must be successful in downgrading iPod Touch 4.0 firmware to 3.1.3/3.1.2 firmware.
Download iTunes
Download iRecovery [Windows]
Download iRecovery [MAC]
Here are some details regarding upcoming tools to jailbreak 4.0 firmware.
- iPod Touch Dev Team has released their redsn0w 0.9.5 beta which can jailbreak 4.0 on 3G.
- limera1n is the expected tool by GeoHot. limera1n jailbreak will do 4.0 firmware jailbreak on iPhone and iPod Touch.
- Kaatje is successful in running a Jailbreak 4.0 firmware on 3GS using custom iPSW. It is may be released as Pwnage Tool 4.0 but nothing can be guaranteed until Pwnage Tool 4.0 is available.


{ 40 comments… read them below or add one }
There is no location where firmware 3.1.3 or 3.1.2 exist on my computer. How can I get it.
go on google and type in download firmware for i pod touch and download 3.1.3 or which ever one u want
Any iphone ipod and ipad firmware here http://www.felixbruns.de/iPod/firmware/
google it!
wat should i do if i have an error 3194 on function 3 ?
i have same problem 3194
Is your ipod still in dfu mode???
i have same problem and still in dfu mode
Yes
irecovery sais "no ipod touch/iphone found"
im using itunes 9.1
please help, pm me
You need ITunes 9.2. Available on Apple’s website.
when i i pick the 3.1.3 firmware file, it doesn’t verify with apple? whats wrong?
error 3194 on function 3. what do i do?
i cant select 3.1.3 it says not compatiable, wat is da problem
hey i had the same problem, you don't have the correct firmware, try downloading another one…
just try again
I Have Same Problem: “3194″
Really Need Some Help!
when i try and press shift+restore it just comes up with a message to restore the factory settings. it doesn’t show me the window where i can choose the 3.1.2 firmware.
what can i do? i am running 4.0 on my ipod now and i want to downgrade it to 3.1.2
It didn’t work. I updated my 3g iPod touch to 4.0 and want to downgrade to 3.1.3. I tried to choose the proper .ipsw file thru iTunes 9.2 and then it tried to restore by saying “Verifying iPod restore with Apple…” but suddenly thrown an error as “The iPod could not be restored.This device isn’t eligible for the requested build”. Then as mentioned here, i downloaded irecovery and tried in terminal. First, i enter ./iRecovery -s it said ‘No iPod/iPhone found’ even though my iPod is connected properly without dfu mode. Then i tried giving ‘setenv auto-boot true’ , it says command not found. I don’t understand what should i do? I’m struggling a lot downgrading my 3g iPod touch from 4.0 to 3.1.3.
does your ipod touch still work?
I had the same thing and while I am by any means an expert on this I do have a theory. The instructions say that the firmware install should take 10-15 mins, but because ours takes such a relatively small amount of time I think that iTunes is merely unpacking the firmware package (as it says in the window while this is taking place) and then signing the firmware with Apple BEFORE it actually gets installed on the iPod. Apple must have gotten wise to the fact that people were able to manually remove the device from recovery mode before the firmware was verified allowing most instructions you see on the net to work. If possible, I'm going to try and find a way of getting an older version of iTunes installed that will use the old process of unpacking->installing->checking. It shouldn't matter that iTunes can't recognize 4.0 if the device is in DFU mode anyway. I'll let you know if it works.
i cant start irecovery it just exits a moment after i start it..
I followed all the function ,but when i press *shift* and click update or restore on itunes the itunes does not pick up the firmware so i can not click it , Help Please
same thing is happenign to me
when u download it u have to put .ipsw on the end
i was having the same problem and i downgrade your itunes to 8.2 (instead of 9.2) then this time there was no error message, and the download worked fine. Hope this helps…
Heya i have same problem whit the eror code 3194 ? What is wrong is it wrong firmware or is it something whit the ipod cause i have tryed this on 2 computers same problem but not tryed a difrent firmeware so plz help what the fuck could be wrong i so hate the patch 4.0 )= sory about my cursing but i dont like the 4.0 nerly nothing orkes on it )=
Have the same problem, seems there's something to do with itunes 9.2 but then 4.0 is not compatible with anything other than itunes 9.2 so it's hopeless
Someone Just Tell me How to downgrade me 4.0 firmware…. I tried the note pad thing where u add something it didnt work ummmm i do not have shsh blobs but my ipod is not a mc model… so help
this is bullshit i tried it my ipod now wont even turn on!!!! not only that but its tellin me i have to restore it and ima lose everything this is bulshit!
hey im 12 and i know quite a lot um hold the top and thebottom button wich is round hold them at exsakley the same and hold them for ten seconds untill apple singn appers
@john You’ve got to be kidding me. At 50 you know a lot. NOT AT TWELVE. Besides, if you “know a lot”, don’t you know about a little thing called “spelling”? You sure don’t know that!
@f***it When you enter DFU (aka recovery aka “the Connect to iTunes screen”) mode you’re essentially preparing your iPod touch for a complete wipe and system reinstall. So, and I’m really sorry to say this, unless you had iTunes back up your data before entering DFU mode, you’ve lost everything not in your iTunes library (notes, new apps, new songs, new videos…).
Hey just let the battery run out and the ipod will exit DFU mode, happened to me.
Hey i tried to install the usb thingy and now none of my usb ports work wtf people this is weird because i cant even use my mouse or keyboard?????????????!!!!!!!!!!!!!!
plz help
when i click restore it just restores the version 4.2.1 and i can't "direct" iTunes to choosing one of the lower versions. what do i do?
it has to be a .ipsw file, are you sure it is not packed?
DOESN'T FIND FILE
Need to downgrade touch! Badly
i downloaded the 3.1.3 firmware and i got to function 3 but when i do shift+restore the 3.1.3 firmware is no where on my computer!
ok i cant get passed the second part my computer isnt picking up the ipod at all…… please help me !!!