Sony NVD-U03E Bedienungsanleitung Seite 6

Selecting the maps to add/remove
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Select "Transfer New Maps" from the Main Menu.
If an update is necessary, the following display appears, and follow the procedure of
the display.
Loading new software to your navigation unit will delete all pre-existing maps. In some
cases your "Favorites" will no longer be compatible. (See "Important notice" on page 9.)
Update the software, and the user setting will be reset. Set the data again after updating.
If you agree to these terms, select "Yes."
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