This step by step guide and tutorial will show you how to downgrade your iPad iOS 3.2.2 to a previous iOS version. In order to downgrade your iPad from 3.2.2 to 3.2.1, you will have to have your SHSH blobs on file on Saurik’s servers. If you do not have these SHSH blobs on file, you will not be able to downgrade.
Downgrading iPad iOS 3.2.2
Step 1 for Windows: Make sure you are logged in with administrator privileges. Launch Notepad and navigate to C:/Windows/System32/drivers/etc. Add the following at the very bottom of the file: 220.127.116.11 gs.apple.com
Now save the file back where you found it.
Step 1 for Mac: In Finder, select Go To Folder, and enter /etc. Search the hosts file and right click on it to open with TextEdit. Add the following at the very bottom of the file: 18.104.22.168 gs.apple.com
Click Save As to save the edited file on your desktop. Name the file hosts, and make sure to uncheck the box that says “if no extension is provide, use .txt”.
Now drag and drop this edited file to /etc.
Step 2: Download the iOS you want to downgrade to from here.
Step 3: Put your iPad in DFU mode. Launch iTunes and plug your iPad in. Press and hold the home and and sleep button together for 10 seconds. After exactly 10 seconds, release the sleep button while still holding the home button. Keep holding the home button until iTunes tells you it has found an iPad in recovery mode.
Step 4: Now hold the Option key (Mac only) or Shift key (Windows only) while clicking the Restore button in iTunes. A dialog box will pop up and you’ll be able to choose the firmware you downloaded in step 2.
Step 5: At this point, some of you will be fine. The iPad will restore without any problem. However, some of you might end up in recovery mode again. It’s ok. We just need to kick the iPad out of recovery mode. To do so, download TinyUmbrella and click “Kick Device Out of Recovery”.
Done. You should now have safely downgraded your iPad. Depending on the iOS version you’re on, you might even be able to jailbreak it.