My tracker does not respond to SMS text commands

Make sure the tracker is on

LA9038 has a switch under the cover that needs to be in the ON position, both the red and white wires need to be connected to +12V and the black wire to -12v to power-on the tracker. LA9038 has two status LED lights - they should each be blinking once after a few minutes if the tracker is working OK – solid green means no mobile connection is available. LA9039 OBDII tracker will only send updates whilst the vehicle ignition is switched on, and it will take several minutes after ignition switch-on for the first GPS position update to appear.

Make sure the SIM has SMS access available

If the tracker is powered on successfully, but not responding to SMS commands after more than a minute has passed, remove and test the SIM in a phone to make sure it has good mobile phone signal reception, and can receive and send SMS from the same specific location as the tracker. Data-only telco plans may not have SMS access – these are not recommended.

If the tracker is located far from a metropolitan area, make sure the SIM’s telco has towers nearby (some telcos, for example Optus, don’t support all frequencies outside metro areas – try a Telstra SIM in the tracker to see if this is your issue as Telstra usually have towers for all frequencies in most parts of Australia).

See https://www.cellmapper.net/map?MCC=505&MNC=1 and change to suit your telco.

If you would like more assistance, please contact your local Jaycar store for further support.

Find your nearest store.