How to downgrade from iOS 4.3.2 to iOS 4.3.1 on iPhone, iPod Touch and iPad
NOTE: This guide will only work if you have SHSH blobs saved for the particular firmware you are downgrading too.
If you do not know SHSH stored BLOB that if you have not saved or [Do not worry about], you can watch it on Cydia, start Cydia and you will see bubbles on top of stored SHSH.
Step 1: First you must download the ipsw file (firmware) that you want to downgrade. Here.
Step 2: Now we’ll start the downgrade, put the device in DFU mode first, here’s how:
- Connect the device to your computer IOS.
- Turn it off.
- Launch iTunes.
- Hold Power and Home Affairs, buttons simultaneously for 10 seconds or so.
- Release the button, but the Home button until the computer detects a new USB device.
- iTunes now recognizes the iPhone, iPad, or iPod touch.
Note: iPhone, iPod touch, or iPad display at the moment should be blank (black in color), if not, then you are likely to be in recovery mode not DFU mode.
Go to: C:Windowssystem32driversetc
[Windows] And then search for the Hosts file
[For Mac Users] Mac OS X users can get to “/etc/” directory by going through “Go –> Go to Folder” from Finder.
Step 4: Now it’s behind you, open it in Notepad (Windows) and Mac OS you can make it open in TextEdit after opening only at the end:
Following the STEPS, after saving the file.
Note: The Windows 7 and Vista: Start Notepad “with administrator privileges by right-clicking Notepad app, and select Run as administrator” option.Select want to downgrade the firmware you want, and click Open.
Step 5: Now you start iTunes, click on the IOS device icon in the sidebar in iTunes. Now press the left and the “old” (Option) key on the Mac or the Left Shift key while the Windows key and then hold the “Reset”(not “update”or “Check for updates) button in iTunes and then press.
Step 6: Now you will be asked to select the ipsw (firmware)
It is almost finished now iTunes will automatically install the desired operating system, as shown in the status bar to reach the display device occurs when it restarts automatically.
Error: If you receive an error message 10XX, you do not have to worry about. Redemption has been successfully completed. But you need to get the iPhone recovery mode. So this – TinyUmbrella download an application that helps you in and out from the recovery mode (Windows / Mac).
Throw away the use of the device by pressing the “Kick Out of Device Recovery” button TinyUmbrella directly to the Start button, and the TSS server, you can also RecBoot. This is it!
Note: You must now delete host 220.127.116.11 gs.apple.com row and save it. This allows iTunes to you for future updates from Apple fast.