How to Downgrade iPod Touch from 4.3.5 to 4.3.3
What you need: A 4.3.3 IPSW, RedSn0w, iFaith, TinyUmbrella, iTunes 10.4.1, and Sn0wBreeze. All files are in here (except IPSW): Here You need to change iFaith out with 1.2.1 here.
IPSWs: iPod Touch 4g iPod Touch 3g iPhone 3GS iPhone 4 (4.2.8 Verizon) iPhone 4 (GSW)
Others can be found here: Click here!
Procedure
Download Restore Files from the link mentioned above
Browse following directory C:\Windows\System32\drivers\etc , and replace the “HOST” file with the downloaded file under the “Restore Files” folder
Run Redsn0w and jailbreak the device using the tutorial here but you have to point to iOS 4.3.3 rather than iOS 4.3.4 or iOS 4.3.5.
After the procedure is complete the iPhone will stuck on recovery mode.
Open Tinyumbrella (present in “Restore Files” folder), right click on your iDevice name on the left pane then press on Start Tss Server.
Open iTunes and restore your iDevice with iOS 4.3.3 firmware using (Shift + Restore).
You will get error 1013, now use Fixrecovery (present in “Restore Files” folder).
Open iFaith (present in “Restore Files” folder) and Save shsh blobs.
Open sn0wbreeze (present in “Restore Files” folder) to create custom iOS 4.3.3 firmware and restore it using iTunes (Shift + Restore).
And you are done downgrading your firmware.
IPSWs: iPod Touch 4g iPod Touch 3g iPhone 3GS iPhone 4 (4.2.8 Verizon) iPhone 4 (GSW)
Others can be found here: Click here!
Procedure
Download Restore Files from the link mentioned above
Browse following directory C:\Windows\System32\drivers\etc , and replace the “HOST” file with the downloaded file under the “Restore Files” folder
Run Redsn0w and jailbreak the device using the tutorial here but you have to point to iOS 4.3.3 rather than iOS 4.3.4 or iOS 4.3.5.
After the procedure is complete the iPhone will stuck on recovery mode.
Open Tinyumbrella (present in “Restore Files” folder), right click on your iDevice name on the left pane then press on Start Tss Server.
Open iTunes and restore your iDevice with iOS 4.3.3 firmware using (Shift + Restore).
You will get error 1013, now use Fixrecovery (present in “Restore Files” folder).
Open iFaith (present in “Restore Files” folder) and Save shsh blobs.
Open sn0wbreeze (present in “Restore Files” folder) to create custom iOS 4.3.3 firmware and restore it using iTunes (Shift + Restore).
And you are done downgrading your firmware.
How to fix errors: Error 3194, 3164, Error 3014, 3004, 3002, and Error 1604,1603, 1602, 1601, 1600 0r 29.
If you have any more problems, PM me or post here.



