69
T23
Series User Manual
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Problem: GSM light is flashing (T23 Series is trying to send a SMS but
having a problem)
Possible Cause:
Resolution:
No GSM signal.
Check with a mobile phone to see if there is a
signal in the area or try to call the unit to see
if you receive a ring tone.
Network busy.
Wait a few minutes to see if the message
gets through.
Zero balance on pre-paid account.
Add credit to the account. Unit will recover on
its own or send
BOOT
command to quickly
reset the unit.
Phone number in user list is incorrect.
If you have just added a new user, check
that the phone number is correct.
Problem: GPS light is on (T23 Series does not have a current location)
Possible Cause:
Resolution:
Unit does not have clear view of the sky.
Move the unit to a location where the sky is
visible. Tall buildings, trees, heavy rain, car
tinting, can cause problems with the GPS
reception.
Car tinting is blocking the GPS signal.
Move the unit outside the vehicle – if the light
goes off then the tinting is blocking the
signal. Either change the tinting in the
windshield or with T23 or T23 Fleet install the
optional external GPS antenna outside the
vehicle.
Unit has been moved a large distance
without a location fix. Example: on a flight or
train trip.
Remove and re-insert the battery to reset the
location.
Problem: Owner has lost their phone
Possible Cause:
Resolution:
If a backup owner has been defined then use
their phone to add your new number in.
Use OWNER,password to add you new
number in then delete the old number with
the
DELUSER
command.
Problem: Owner has forgotten their password
Possible Cause:
Resolution:
The owner can send the RESETSETTINGS
command to set the password back to 0000.
All other settings are also reset as if the unit
was new, so the Owner will have to register
themselves again.