You must "bind" your phone number as the master controller for the device:
: Visit "Gpsui.net" and create an account if you haven't already. Fill in the required details. Gpsui.net Setup
The SIM card must have SMS capability disabled unless you intend to use SMS commands. Many users fail their Gpsui.net setup because their SIM is locked with a PIN or lacks GPRS (data) service. You must "bind" your phone number as the
: Format your text message strictly according to your device's operating manual. Common command formats include: apn123456 [apn_name] APN,[apn_name],[user],[password]# t-mobile.com or wholesales ).
: Locate the specific APN settings string provided by your cellular carrier (e.g., t-mobile.com or wholesales ).