4
4. Installation instructions
4.1 Preparation: need to insert a GSM SIM card in device.
Please insert SIM card before turning the device power switch to on; The
SIM card need open the GPRS function;Please make sure SIM card with full
balance.
● Insert SIM card → Switch button to “ON” place
4.2 Installation
If the windscreen glued by metal thermal insulation layer or heating layer, it will
reduce the GPS receive signal and lead to GPS work disorder, then please
change the installation place.