You might ask what should I do if I have upgraded my iPad 2 to 4.3.4 or 4.3.5? The answer is quite simple. You will have to downgrade your iPad 2 to 4.3.3 and then jailbreak it again because there will be no jailbreak for iPad 2 till iOS 5. Or you will have to keep the official update. However iOS 4.3.4/4.3.5 can be jailbroken on all other idevices.
If you did save your SHSH blobs for your iPad 2, then you can downgrade to previous version. If you did not, you are out of luck. You can’t downgrade to previous version.
To downgrade (With SHSH Blobs saved):
1. Download the required iPSW file from here.
2. Once you’ve downloaded the required IPSW file, put your iPad in DFU mode. If you don’t know how to put in DFU mode, watch this How-to video.
3. Now open up TinyUmbrella and click the ‘Start TSS Server’ button.
4. Launch iTunes, choose your device from the left sidebar. Hold down the left “Shift” key if you’re on Windows or hold down the left “alt” key if you’re on a Mac and click on “Restore”. A new pop up will open asking you for the location of the IPSW file. Now navigate to the IPSW you downloaded.
So who got stuck on official 4.3.4 or 4.3.5?