@CivicRacer
Your unit can read a map "<any_name>.img" put in either Map folder of unit or microSD card [latter option is better for unlocked maps]. e.g.: "x:\Map\Philippines.img" and "x:\Garmin\JVC\*.jcv" will work fine and is much safer than putting the files on internal memory [that way if they cause a problem, you can just remove the card].