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Appendix
This section contains troubleshooting solution and technical information for
your reference.
Troubleshooting
Problems Possible Solution
I pressed the power
button but the
device doesn’t
switch off.
Make sure that you hold the power button for two
seconds to turn it off.
If the unit still doesn’t turn off, remove the battery
or the power source for five seconds and install
it again.
The unit does not
respond when I try
to move the cursor.
The map position may be latched. Check if the ▲
symbol is shown in the bottom right corner of the
map page. If so, press and hold a direction key to
unlatch the device.
What do I do to
return to my current
position on the map
page after I have
moved the map?
Check if the ▲ symbol is showing in the bottom
right corner of the map page. Press the ESC
button to return to your current position.
The GM-120 fails to
locate my current
position.
Make sure that you are not in simulation mode.
Make sure you are in an area with no obstruction
such as trees or tall buildings.
The GM-120 requires synchronization with at
least three satellites to identify with your
current location. Once the position has been
identified, it requires at least one satellite to
maintain status. If available satellite signals are
too low in orbit or all in a line, it may not be
able to locate your current location.