iOS 4.3 to iOS 4.2.1. Will This Work?

[harribo]

hello,
firstly, i am new here so try not to be too harsh . I accidently upgraded to iOS 4.3 ( when i say accidently i mean; i didnt no that it wasnt possible to downgrade.) I was perfectly happy with iOS 4.2.1 but unfortunately there is no iOS 4.3 untethered jailbreak at the moment... anyways, is there a way to downgrade to 4.2.1 without shsh blobs, using a jailbroken app perhaps? I am happy to do the TETHERED iOS 4.3 jailbreak if there is an app that will enable me to downgrade to iOS 4.2.1?

Thanks in advance for any help.
harri

[Simon]

WIthout SHSH there is no way. Have you checked with tiny umbrella to see what SHSH you have?

[harribo]

i have ios 4.3 blobs and that is all . do u no when the i0n1c untethered jailbreak is out. I have heard it will be out before the 19th but there is still no news

[Simon]

Not sure sorry.

[harribo]

thankyou

[Simon]

no prob

[theflyguy]

I have a question. I have a mac and had to restore my jailbroken iphone 4. I was forced to upgrade to 4.3. I have shsh blobs saved on cydia. Can you direct me to the process of how to downgrade. It was also unlocked but that is not as important as the jailbreak.
Any help would be greatly appreciated.

Thanks in advance.

[Simon]

You can check the tiny umbrella guide in my sig for help with that.

[reVain]

To harribo,

If you have an iPhone 3GS with the old bootrom, it will be an untethered jailbreak for 4.3. Not sure which iPhone you have, but just thought you should know.