DownGrading iOS to Previous Version Officially

Question

I 'am Having iPad 3 , iOS 5.1 and I have latest Lion Version and X-code latest installed. But When I m Connecting the device ,X-code Can't Find my device.

But I have another system with Snow Leopard 10.6.8 and X-code 4.2 installed (iOS 5 SDK) Which FInds my Device correctly But the problem is its Doesn't Support the Version.its asks the device iOS to be downgrade to testing.

So I would like to test my app on older ios version (iOS 5), so my Question is :

1. is there any standard way to downgrade Device iOS 5.1 to iOS 5.0 or earlier so that i can test my Application ?

2. Can i Able to Restore/Upgrade again after completing my task ?

   Any link to Official Page would be great.Please help Thanks in Advance.

Answer 1

As far as i know, there is no way to downgrade officially. apple does not allow to downgrade your iOS.

Answer 2

I just update my computer's iOS SDK any time i update my development devices, you can get it at the bottom of the iOS dev center main page