
MEITRACK T399 Bluetooth Vehicle Tracker User Guide
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⚫
Ensure that the PIN lock of the SIM card has been closed properly.
⚫
Ensure that the SIM card in the device has subscribed the caller ID service if you want to use your authorized
phone numbers to call the device.
⚫
Power off the device before installing the SIM card.
6.2
LED Indicator
To turn on the device, press and hold down the power button for 3–5 seconds or connect the device to an external
power supply (11.4–90 V).
GPS LED Indicator (Blue)
Blink fast (once every 0.1 seconds)
The device is being initialized, or the battery power is
low.
Blink fast (0.1 seconds on and 2.9 seconds off)
A GPS signal is received.
Blink slowly (1 second on and 2 seconds off)
No GPS signal is received.
GSM LED Indicator (Green)
Steady on
There is an incoming call, or the subscriber you dialed is
busy now.
Blink fast (once every 0.1 seconds)
The device is being initialized.
Blink fast (0.1 seconds on and 2.9 seconds off)
A signal is received from a base station.
Blink slowly (1 second on and 2 seconds off)
No signal is received from a base station.
6.3
Device Configuration
6.3.1
Installing the USB Driver
1. Visit http://67.203.13.28:9090/play/STM32_USB_Driver.rar, and download the STM32 USB driver.
2. After the installation is finished, connect the device to the computer through the USB cable. If
STMicroelectronics
Virtual COM Port (COM5)
is displayed on the
Device Manager
page, the driver is installed successfully.
Caution: Before connecting the device to the computer through the USB cable, turn on the device first. Otherwise, the
device cannot be detected by Meitrack Manager.