vB Easy Archive - How do we revert 3.9FB back to 4.6?

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How do we revert 3.9FB back to 4.6?
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Posted by: XanderMac

I still can't seem to get an answer to this. GeekDLL posts info to this iPlus saying that the fakeblank downgrade is reversible but with no instructions on how to reverse it.

So how is it reversed?

Posted by: njdevilsboy86

i would think you can just restore in itunes and it would do it that way.

Posted by: XanderMac

From what I have seen there is supposed to be an application to revert it for you but I can't find any such program at all. I'd like to try iPlus but not without a definite restore path ya know.

Posted by: raulbe

At the moment I have only heard of one success story using iphone-tools by solar, there is thread about this on hakint0sh and a success report by a user upgrading from 3.9FB to 4.6.

You have to get a locked baseband before attempting to upgrade bootloader to 4.6, since that bootloader doesn't work unlocked with newer versions.

So if you are on 114 you would have to erase baseband because iTunes restore will only upgrade baseband so if it sees 4.04 it will leave it untouched. ITunes does not change bootloader.