How to downgrade from 4.3.1 to 4.0

[NoTECHknology]

I want to down grade so I can jb but if there's a way to jb without downgrading please let me know

[MrSwitzrland]

I don't want to seem like an *******, but I'm guessing you don't know much on the subject, so I won't go into extreme, nerdy detail about it.
Soon, we may be able to visit a website in Safari and slide a switch to jailbreak. In the meantime, there is no simple way for you to jailbreak.
As far as downgrading, you would need to have upgraded to 4.3 from an earlier firmware.

[Paco]

In order to downgrade u need to hav saved ur blobs n as for jb on 4.3.1 i think theres a tethered jb for it but im not sure though look around mmi u might find ur answer

[Cowboy]

I want to down grade so I can jb but if there's a way to jb without downgrading please let me know

There is a tethered(meaning anytime the phone shuts off you have to plug it in to the computer and run the tool again) jb. The how to is on the front page of the site
here Tethered Jailbreak for iOS 4.3.1 now available for Mac and Windows

[NoTECHknology]

In order to downgrade u need to hav saved ur blobs n as for jb on 4.3.1 i think theres a tethered jb for it but im not sure though look around mmi u might find ur answer

What is blobs and how do save them

[Cowboy]

Download tinyumbrella google it. The click save ssh. Blobs allow you to upgrade and downgrade your phone as you please

[Paco]

Can u save blobs for 4.3.1?

[Cowboy]

Yes

[Paco]

But u need to be on 4.3.1 to save right?

[NoTECHknology]

K so after I save my ssh then what sorry I have no clue what I'm doing