Hi,

I had a properly virginized 1.0.2 iPhone that I upgraded to 1.1.1 back when Geohot's trick was released.

Yesterday I tried foolishly upgrading to 1.1.2 after installing OkToPrep and for whatever reason AppSnap said OkToPrep wasn't working after I upgraded to 1.1.2. Now I was stuck and couldn't downgrade to 1.1.1 for some reason, it kept giving me errors. So I downgraded to 1.0.2 and virginized the baseband using the new secpack. I confirmed that the baseband is proper for 1.0.2.

Now when I try to upgrade that 1.0.2 to 1.1.1 iTunes gives me either Unknown Error (1) or Unknown Error (4).

Could someone please help upgrade my phone back to at least 1.1.1 if not 1.1.2?

I'd appreciate all help. Thanks!

Figured it out, the old iTunesMobileDevice.dll was the problem, 7.5 requires its own dll to restore firmware, it won't allow you to use an old dll (which I had put in there to use iBrickr).