is insufficient or the machine is stopped.
First of all, check the LEDs’ status. If it is not
convenient to check that, please check the SIM card
status :
1)Call the SIM card number of the device to check
whether you can get through;
2)Check whether the vehicle is in no GSM area, such
as basement;
3)Check the GSM/GPS disconnection area, whether it
is all disconnected or few of them disconnected, to
make sure whether it is the fault of operator’s
internet.
4)Check whether your SIM card charge is overdue;
5)Check whether the SIM card supports GPRS;
6)Check the parameter setup, whether the device
IMEI number, GPRS sending interval is correct;
3.If the device’ GPS function is normal, but can not
locate for a long time, please check whether the
installation setup of device is correct:
1)Please make sure the GPS antenna face is up;
2)Please make sure there is no electromagnetic wave-
absorbent object (metal) above the device, especially
the thermal-protective coating on the windshield, it
may affect the GPS reception of the device;
