I have read every thread concerning downgrading but I can't get it to downgrade I have downloaded the same file folder(i'm using a black macbook) and it extracts everything. Then my ipod is hooked up and I go to downgrade and IDK which file to choose our of like the 10 they give me including the Firmware folder. Then when I try to use a file in itunes I get error 1403. What am I doing wrong?