
broken, please return the device to the seller.
b)If the green GSM LED is not in constant glow, please
check the installation of SIM card.
10.1.2 Please check the offline area in order to judge if
the network problem of operators.
10.2 When GPS cannot receive the signals, please drive in
the open sky and ensure there is no metal thins on the
device.
10.3 When the device cannot receive the GSM signal, please
check the SIM card installation. If the GSM signals cannot
reach your location (such as the basement), please drive
to the open sky.