MEITRACK MT90L User Guide
Copyright © 2019 Meitrack Group All rights reserved.
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emergency. The device will beep once and vibrate. The device will
also dial three authorized phone numbers in sequence. It will stop
dialing when one phone number answers. Meanwhile, the device
will send an SMS with positioning information to authorized phone
numbers. If the GPRS/UMTS function is enabled, the device will send
a GPRS/UMTS message to the server.
In the sleep mode, press the button to wake the device up.
5
Microphone
It will operate automatically when the listen-in and call functions are used.
6
Speaker
It will operate automatically when the call function is used.
7
Power button
When the device is turned off, press and hold down the button for 2
seconds. The device will make a sound and vibrate, indicating that it
will be turned on.
When the device is turned on, press and hold down the button for 2
seconds. The device will make a sound, indicating that it will be
turned off.
In the sleep mode, press the button to wake the device up. Then the
power indicator will blink for 10 seconds.
8
Micro USB port
Used for charging the device, configuring parameters, and upgrading
software.
If the device is charged by optional magnetic charging connector, you
need to remove the USB rubber cover and then plug the magnetic
charging connector into the USB port.
9
Volume up
During the telephone conversation, press the button to turn up the
device; press and hold down the button for 2 seconds to start the
hands-free conversation.
10
Volume down
During the telephone conversation, press the button to turn down
the device.
11
Lanyard hole
Place the lanyard through the hole.
12
Battery cover
After removing the battery cover, install the battery and SIM card.
5.2
LED Indicator
To start the MT90L, press and hold down the power button for 3–5 seconds. Then the blue and green indicators will
blink on for 1 second and blink off for 1 second simultaneously.
GPS Indicator (Blue)
Indicator Status
Description
Steady on
The device is charging.
Blink (1 second on and 1 second off)
The GPS is invalid or the device is initializing.
Off
The GPS is valid.
Blink (0.3 seconds on and 0.3 seconds off)
The battery power is low.
WCDMA/GSM Indicator (Green)
Indicator Status
Description
Steady on
A call is coming in or a call is being made.
