In order to use this 2g gps tracker normally, it is composed of these parts: the device (2g gps tracker) +SIM card + attachment online platform. When you log in to the account, how can the platform monitoring page be offline?

First, check whether the device indicator is normal. If no conditions are available, check the status of the SIM card as follows:

1) Dial the SIM card number of the device to see if you can hear the sound of the call connecting.

2) Whether the vehicle is in a place without GSM network signal.

3) Observe whether an individual terminal is disconnected or all terminals are disconnected in the area where the terminal is located to determine whether it is a network problem of the operator.

4) Whether the SIM card is overdue.

5) If the terminal is offline on the last day of the month, check whether the GPRS service is cancelled.

6) Query the parameters of the terminal through the command to check whether the parameters returned by the terminal are correct.

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