I have this exact same problem trying to downgrade from 5.0 to 4.4.2 firmware off of the official site. I have used multiple Odin versions, as well as two AT&T 4.4.2 md5 files. My phone is not rooted, I am trying to downgrade to 4.4.2 so I can root it.
Phone says:
ODIN MODE
Product Name...