Acer F900 User Manual page 25

Tap the Download Button to
update the GPS data manually.
The figure on the left shows how
to download using the
synchronization connection.
Tap the Setting Button in the
Satellite Data Update main
screen to open the dialog in the left
figure.
Check the expiration checkbox to
activate the reminder function on
the due date.
The default value is checked. The
system will automatically update
the data when online.
Costs will be incurred when
connecting over the GPRS, so
consider carefully before
activating this function.
Voice Command Satellite Navigation 2-5