You can jailbreak the iOS 5.1.1 firmware tethered with the latest version of RedSn0w. If you already had an untethered jailbreak on the iOS 5.1.1 then a tethered jailbreak won't be enough for you.
So, if you are looking for a way to downgrade from the iOS 5.1.1 firmware to the iOS 5.0.1 or the iOS 5.0 firmware, then you have come to the right place!
iOS 5.1.1 Downgrade — Take Care of Before You Can Start :
- If the device you own is an iPhone 4, iPhone 3GS, the iPad 1G, the iPod Touch 4G, the iPod Touch 3G then this guide is for you. This guide is not for those who want to downgrade the iPhone 4S or the iPad 2.
- You will need APTicket + saved SHSH blobs for the iOS 5.0.1 or the iOS 5.0 firmware.
- A Windows computer.
Downgrade iOS 5.1.1 To iOS 5.0.1 / iOS 5.0 — A4 devices:Step 1: First of all, you will need to download a tool by iH8Sn0w called iFaith 1.4.2. This tool will dump the SHSH blobs off the iDevice that you have.
Step 2: Now, run iFaith, click the 'OK' button when you read the warning.
|Welcome to iFatih|
|iOS 5.1.1 Signed IPSW|
|Downgrade iOS 5.1.1 with SHSH Blobs|
|Browswe for 5.0 / 5.0.1 firmware|
Step 7: Go back to the iFaith main menu when the custom firmware file has been created and then click on 'Use DFU Pwner' and follow the instructions give to you.
|iFatih iOS 5.1.1 DFU Mode Pwner|
You have successfully downgraded the A4 iOS device from the iOS 5.1.1 firmware to iOS 5.0.1 or the iOS 5.0. Leave your thoughts!