GL100 User manual
5. Troubleshooting and Safety info
5.1.
Troubleshooting
Trouble
Possible Reason
Solution
The SIM card is not inserted.
Please insert the SIM card into
GL100.
After GL100 is turned on, the
Red LED 1 flashes quickly
always.
The signal is too weak;
GL100 can’t register to the
network.
Please move GL100 into place
with good GSM coverage.
The SIM card in GL100
doesn’t support GPRS.
Try a GPRS supported SIM
card.
APN is wrong. Some APN
can not visit the internet
directly.
Ask the network operator for
the right APN.
Messages can’t be reported to
the backend server by GPRS.
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 GL100.
The function of power key
was disabled by AT+GTSFR.
Enable the function of power
key by AT+GTSFR.
GL100 is turned on after insert
a charging cable.
The function of full power up
was enabled by AT+GTSFR.
Disable the function of full
power up by AT+GTSFR.
No response from UART when
configure GL100 through
UART
GL100 is in power saving
mode.
Remove the Data_Cable, and
plug it in again. After this
operation, GL100 will exit
from power saving mode for 10
seconds.
Please move GL100 to a place
with open sky.
It is better to let the top surface
face to sky. (The same surface
with indication LED)
GL100 can’t get successful
GPS fixing.
The GPS signal is weak.
GL100 will stop GPS if it can’t
get GPS fixing in 2 minutes
(except in emergency mode).
So please make sure the GPS
signal is good enough when
doing the first time of GPS
fixing.
TRACGL100UM002
- 26 -
Queclink
Confidential
