ICN map backups

hi

new to this forum, but not to the ICN530. Had one for several years and the wife uses it the most (even though she bought it for me!!!).

question is, having bought a 2nd hand American ICN530, can i backup or save the maps to a pc, as i don't have the original disks, before loading the uk maps from the disks i have?

any help or pointers graefully received...

max

not possible. when you update the maps the usb screen appears and you have to registrate the unit again. but i can fix this