GTLT2 USER MANUAL,
www.i-trac.cn
Page 21 of 21
SIM card has expired
Check in phone that the SIM can send SMS message. Replace SIM card if needed.
SIM has PIN code set
Remove PIN code by inserting SIM in you phone and deleting the code.
SIM is warped or damaged
Inspect SIM, clean the contacts. If re-inserting does not help try another to see if it will
work.
Roaming not enabled
If you are in a different country your SIM account must have roaming enabled.
Error connecting GSM antenna
Make sure the GSM antenna is connected to the GSM interface.
Problem: SMS received starts with ‘Last…’
Possible Cause:
Resolution:
Unit does not have clear view of the sky
Move the antenna of the unit to a location where the sky is visible.
GTLT2 is in an inner place
Wait for the target to come out
Battery is low
Recharge the unit and the GPS will start working.
Error connecting GPS antenna
Make sure the GPS antenna is connected to the GPS interface.
Problem: Unit Fails to Connect to Server via GPRS
Possible Cause:
Resolution:
SIM card in GTLT2 does not support GPRS function
Enable SIM card GPRS function.
GPRS function of GTLT2 is turned off
Turn on GPRS function of GTLT2.
Incorrect IP address or PORT
Get the right IP address and PORT and reset to GTLT2
GSM signal is weak
Move the unit to a location with good GSM reception.
Contacts
If you encounter any problems when using our products, and cannot solve them by yourself, please contact
our technical support team by writing an E-Mail to us. We will be pleased to help you.