Virgin Restore 3.1.2

Been searching around forums like crazy looking for some sort of direction on how to do this, but anything I find is back from 2007. Is there any tool I can use to restore my iPhone 3GS to Virgin state? I could even virginize it to an earlier firmware and then update to 3.1.2. My phone is just having some serious problems that an iTunes restore doesn't fix.

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Originally Posted by wildonrio

Been searching around forums like crazy looking for some sort of direction on how to do this, but anything I find is back from 2007. Is there any tool I can use to restore my iPhone 3GS to Virgin state? I could even virginize it to an earlier firmware and then update to 3.1.2. My phone is just having some serious problems that an iTunes restore doesn't fix.

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Put iPhone in DFU mode http://www.hackint0sh.org/f137/54082.htm
Restore in iTunes.
Set iPhone up as new.

This will viginize a 3G or 3GS iPhone and remove any trace of jailbreak and unlock.