User's Manual Part 3

7 Troubleshooting
120 GeoExplorer 2008 Series User Guide
Serial clip issues
Problem Cause Solution
Handheld does not
recognize serial clip is
attached.
The handheld needs to
be reset.
Perform a soft reset of the handheld. To do this, either
press the
Reset button, or press the Power button to
open the Power menu and then tap
Soft Reset.
Unable to receive
information from COM1.
The incorrect serial port
settings have been
selected on the handheld
or on the other device.
Check that the serial port settings are the same on both
devices and then try connecting to COM1 again.
The incorrect data
protocol is selected in the
application on the
handheld.
Select the data protocol supported by the device and then
try connecting again.
The serial cable used is
not the correct type.
Some serial cables, called
null-modem cables,
switch the data transmit
and data receive lines,
whereas other cables are
'straight through' and do
not switch the pinouts.
Use the serial cable provided with the device.
A ‘New Modem
Detected’ notification
appears.
You have reset the
handheld and then
connected the serial clip.
Tap
Dismiss to close the notification.
Handheld resumes when
serial clip is removed.
The handheld was in
Suspend mode.
To return the handheld to Suspend mode, press the
Power button.
‘Unidentified USB device’
notification appears.
The serial clip is unevenly
connected to the device.
To continue, cancel the notification and then reattach the
serial clip correctly.