Downgrade iPhone 4 iOS 5.1.1 to iOS 5.1 / 5.0.1 / 4.3.3
Downgrade iPhone 4 iOS 5.1.1 to iOS 5.1 / 5.0.1 / 4.3.3 - Today we will show you how to downgrade iOS 5.1.1 to iOS 5.0.1 / 5.1 / 5.0 or whatever version you want in case you have been fed the tethered jailbreak and want to enjoy the untethered jailbreak once again.
Note about this tutorial:
This guide is for iPhone 4, 3GS, iPad 1, iPod touch 4G and iPod touch 3G users who have already saved the SHSH+APTicket for the iOS version you are downgrading your device to. If you didn’t save SHSH+APTicket, you won’t do this now and unfortunately you are out of luck.
Why iPhone 4S, iPad 2 and iPad 3 is not included:
iPhone 4S, iPad 2 and the new-iPad (know as iPad 3) are not included as these devices are not exploitable using Geohot’s Limera1n exploit.
How to Downgrade iPhone 4 iOS 5.1.1 to iOS 5.1 / 5.0.1 / 4.3.3:
Requirements:
- Saved SHSH blobs for the firmware you download to (5.0.1 / 5.0 / 5.1)
- Download iFaith for Windows
- Download iTunes – Windows / Mac
- Download iOS 5.0.1 , iOS 5.0 or iOS 5.1 for your (iPhone, iPad or iTouch)
Step 1: Run iFaith, and choose “Build *signed* IPSW w/Blobs” > “Build IPSW”
Step 2: Now browse the saved SHSH blobs file for iOS 5.0.1 / 5.0 / 5.1.
Step 3: Now browse for the ipsw file of iOS 5.0.1 / 5.0 / 5.1
Step 4: iFaith will cook the custom firmware of 5.0.1 / 5.0 / 5.1 with SHSH blobs.
Step 5: Now from iFaith choose “Use DFU Pwner (iREB)”
Step 6: Finally open iTunes and restore your iDevice to the new custom firmware, that’s it.
[via]
?