I apologize if this has been answered already. I downloaded firmware for the AK120 (1.37) and file unzipped thus was left with a .hex file. I copied file to the root of device ( I think) and nothing happened ( I just dropped in there and din't double click on anything). The root from my perspective is where I see other folders such as Iriver, Music, Playlists, and System. Is this considered the root or I'm at the wrong location? Any information would be really appreciated.