Queclink GL300W User Manual

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4. Troubleshooting and Safety info
4.1. Troubleshooting
Trouble Possible Reason Solution
After GL300W is turned on,
the WCDMA LED flashes
quickly always.
The signal is too weak;
GL300W can’t register to the
network.
Please move GL300W into
place with good WCDMA
coverage.
Messages can’t be reported
to the backend server by
GPRS.
APN is wrong. Some APN
cannot visit the internet directly.
Ask the network operator for
the right APN.
The IP address or port of the
backend server is wrong.
Make sure the IP address for
the backend server is an
identified address in the
internet.
Unable to power off
GL300W.
The function of power key was
disabled by AT+GTFKS.
Enable the function of power
key by AT+GTFKS.
Unable to power off GL300W if
charger connected or using
external battery.
Disconnect charger or external
battery, and try again.
No response from UART
when configure GL300W
through UART
GL300W is in power saving
mode.
Remove the Data_Cable_M,
and plug it in again. After this
operation, GL300W will exit
from power saving mode for 10
seconds.
Re-try GL300W manager tool
again, it will try to wake up
device.
GL300W can’t get
successful GPS fixing.
The GPS signal is weak. Please move GL300W to a
place with open sky.
It is better to let the top surface
face to sky. (The same surface
with indication LED)
4.2. Safety info
 Pleasedonotdisassemblethedevicebyyourself.
 Pleasedonotputthedeviceontheoverheatingortoohumid place,avoidexposureto
directsunlight.Toohightemperaturewilldamagethedeviceorevencausethebattery
explosion.
 PleasedonotuseGL300Wontheairplaneor
nearmedicalequipment.


Queclink GL300W Specifications

General

Brand	Queclink
Model	GL300W
Category	GPS
Language	English