maximoc

Hi, I have a NEX8100 and I need to install Argentina's maps. I got maps from 2014 (for now) I did the Synctool thing and now I have the USB with this structure USB content building car dem lang map poi scheme tmc voice device_checksum ... update_checksum.md5 Argentina's maps are not on NaviExtras. How do I manually add the maps to the USB to update the unit? Thanks!