Some questions on my mind after start using the device!
How to change the SIM card?
What will happened if you remove or changed the SIM card?
How to speed up the tracking time?
The system would not work with a different SIM card. The device is actually configured to work with the SIM inside the device.
The location of the vehicle is otherwise updated every 30 seconds when the car is moving and every 30 minutes when it's stationary. The lag time also depends on the quality of the mobile network, but mostly there should be less than a 1-minute delay.
Monica, CarLock team