As the title says.
Is it even possible? I upgraded my iPad 2 to iOS 5 with knowing downgrading back to 4.3.3 would be possible.
But I have read several posts that it is not possible.
When I try to iTunes gives errors, do I need an older version?

If you've upgraded to iOS5 there's absolutely no way back to 4.3.3, I'm sorry to say. It simply can't be done. You'll have to wait for an iOS5 jail break.

Tim

Howcome? Ealier we used the Tinyumbrella servers to fake the Apple signing server... And now that doesn't work anymore?
If I knew this I wouldn't have upgraded my iPad 2!

Are you sure you're not talking about the 3G iPad 2? I know it is not possible with the 3G iPad 2.
I have the WIFI ONLY iPad 2.

Blobs no longer work with iOS5. It makes no difference - have a look at Leigh's stickies - he warned everyone about this.

Tim

Tim, you were mistaking! I just succesfully downgraded my iPad 2 to 4.3.3!
Hurray!

Me also successful downgrade to 4.3.3 3 time with my iPad 2 wifi.it true

Sent from my iPad using iPF

The title says WIFI ONLY lol.
I am back on 4.3.3 and about to rejailbreak! Yeah!

Why is this not doable on a 3G version? noob here.. thanks

Yes - I made a very serious mistake here and I apologise most profusely. You were quite correct the 'no downgrading' applies only to 3G models. I'm very sorry to have misled you so badly. I will go and do a penance and use a Samsung Galaxy Tablet for a day.....

Tim

There is a fundamental difference in the so-called baseband part of the iPad2 with 3G.

Tim

Haha, it doesn't matter Tim. I am very happy you were wrong!

A friend of mind downgraded his Ipad 2 3G from iOS 5 to 4.3.3 because he couldnt live without XBMC

Not recently he didn't. It's now impossible to downgrade the iPad2 3G.

can u ask ur friend how he did it?

To be clear, he didn't. It is not possible now the 4.3.5 signing window is closed.

Hi Rudy,great to see you've done this downgrade process.
I've recently bought my iPad 2(wifi 16GB White) with iOS 5 installed out of the box,no previous version shsh backup - which according to my knowledge,is essential for downgrading iOS devices to older iOS version,such as iOS 4.3.3.
I've heard many of my friends say there's no way to downgrade to iOS 4.X without backup shsh files,and I'm really disappointed.
While now you've done this,I just wonder if this also works for me,. Did you back up your shsh file(at least once) before upgrading to iOS 5?
Thanks,
Jack

Hi Jack!

Unfortunately for you, yes I (unknowingly) did.
At the moment of startting this post I was confused about some errors that iTunes gave me while downgrading.
My 4.3.3 SHSH blobs were saved by Cydia once my iPad was jailbroken earlier.

But your iPad is on iOS 5? Lucky for you, it isn't 5.0.1.
Mine is on iOS 5 now too, waiting for the upcoming jailbreak. Hopefully it comes soon!