Why can't gps devices display data on the platform.gps vehicle tracker

　　In this case, the gps device is generally not opened or is not in a normal state, you can slowly detect according to the following:

　　1, if it is a vehicle gps device, please check whether the gps device is installed correctly. The installation position should not be too closed, do not have a metal object to block the product, as far as possible to install; For portable devices, check whether the battery is powered up or off.

　　2, detect whether the SIM card on the gps device is overdue or whether GPRS traffic is opened. For details, consult the SIM card operator (example: Mobile: 10086, Unicom: 10010), whether the card is overdue, whether the Internet function is opened, whether the Internet function is effective, whether the package has changed, if it is a mobile SIM card, confirm whether the GPRS access point is cmnet.

　　3, gps device has no signal. You can dial the SIM card number on the gps device if the message is disconnected and out of service, this is the case. If possible, park in an environment with good signal conditions.

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