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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.
VT300 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 VT300 does not support GPRS
function
Enable SIM card GPRS function.
GPRS function of VT300 is turned off
Turn on GPRS function of VT300.
Incorrect IP address or PORT
Get the right IP address and PORT and reset to VT300.
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. We will be pleased to help you.