Does that mean once you've disabled SHA256, which causes the phone to unlock, when you upgrade back to 4.2 or 4.3 that the unlock is retained AND SHA256 is re-enabled? Or does it just retain the unlock and SHA256 stays disabled? If the first situation is the case, then I might consider going through the hassle of downgrading and then re-upgrading?
I was under the impression they probably had some sort of Database or something of that caliber. I can't imagine they have some sort of generator because if that was the case, I'm sure something like that would have leaked by now by some employee, no?
For $28, I might as well go to the local Kiosk in my mall and have it done there. If I could find it for $15 or less, then maybe I'd do it online? Though, the SHA256 option is looking more promising. Though, that's assuming SHA256 re-enables itself while retaining unlock once the phones been updated. The idea of having some sort of data encryption disable bothers me for some reason. Unless you can explain how it's really no different than having it on?