[HOW-TO] - Downgrade Firmware 1.1.3 to 1.1.1

The day when iTunes prompt me to upgrade to 1.1.3, I hesitated coz I don't want to brick my Jailbroken iPod Touch 1.1.2. I quickly read through the iPod Touch Fans Forum and true enough it will brick the Jailbroke iPod Touch and iPhone. In order to Jailbreak it again, the owner needs to go back to the original Firmware 1.1.1 which at first found to be very difficult.

Here's some of the resources which I found that will help to downgrade to 1.1.1:-

1 - iPodTouchMaster Website
2 - World’s Easiest Method to Downgrade the iPod touch from 1.1.3 to 1.1.1!

Thanks to the original sources above... Let me copy the contents from the Source (2) for ease of reading.

Here’s the world’s easiest method to downgrade your iPod touch from 1.1.3 back to 1.1.1, as first reported by our blog reader, James.

Here’s the world’s easiest method to downgrade your iPod touch from 1.1.3 back to 1.1.1, as first reported by our blog reader, James.

• Connect your iPod touch to your running iTunes (version 7.5 is preferred). Make sure it shows up in iTunes.
  
• Make sure your iPod is showing its 1.1.3 home screen (it’s not in Recovery Mode.)
  

• Put the iPod touch in DFU (Device Firmware Upgrade) Mode as follows:
  
• Press and hold-down both the Power and Home buttons.
  
• Release the Power button when you see the iPod disconnects and disappears from iTunes. This takes place in about 10 seconds. The iPod’s screen is blank.
  
• Release the Home button when you see the iPod re-connects and re-appears in iTunes. Again this happens in about 10 seconds. The screen is still blank until the iPod reconnects.
  
• It’s good to go!

• Now you can do the usual restore firmware procedure with Option+Restore (Shift+Restore in PC), and subsequently jailbreak your iPod touch once again.
  

To use iTunes 7.5 or 7.6? Both versions will get your iPod touch downgraded to firmware 1.1.1. However, version 7.6 breaks the “OktoPrep” hack. That means your iPod touch can only be jailbroken to version 1.1.1 after you installed AppSnap. iTunes version 7.5 is therefore preferred as it does not interfere with “OktoPrep” and you will be able to upgrade to version 1.1.2 firmware. Thanks to Berzerker for this tip!