I have a Z1 and when I went to the Z2 I downloaded the .IMG file and using a friends computer who has PATA (I only have SATA) I was able to restore it and upgrade to a Z2.
I now have the Z3 image and I want to do the same, but I don't have access to an older PC with PATA. I do however have access to a PCI PATA card. I wonder if this will work?
The reason why it won't work using a USB -> PATA adapter is because the unlocking software cannot read the drive right? So if you had a brand new drive, you wouldn't have this limitation? I wonder if the unlocking software would read the drive if it was connected to the PCI card?