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GL200 User manual
5. Troubleshooting and Safety info
5.1. Troubleshooting
Trouble
After GL200 is turned on, the
GSM LED flashes quickly
always.
Messages can't be reported to
the backend server by GPRS.
Unable to power off GL200.
No response from UART when
configure GL200 through
UART
GL200 can't get successful
GPS fixing.
5.2. 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
TRACGL200UM001
Possible Reason
The SIM card is not inserted.
The signal is too weak;
GL200 can't register to the
network.
The SIM card in GL200
doesn't support GPRS.
APN is wrong. Some APN
can not visit the internet
directly.
The IP address or port of the
backend server is wrong.
The function of power key
was disabled by AT+GTSFR.
Unable to power off GL200 if
charger connected or using
external battery.
GL200 is in power saving
mode.
The GPS signal is weak.
Solution
Please insert the SIM card into
GL200.
Please move GL200 into place
with good GSM coverage.
Try a GPRS supported SIM
card.
Ask the network operator for
the right APN.
Make sure the IP address for
the backend server is an
identified address in the
internet.
Enable the function of power
key by AT+GTFKS.
Disconnect charger or external,
and try again.
Remove the Data_Cable_M,
and plug it in again. After this
operation, GL200 will exit
from power saving mode for 10
seconds.
Please move GL200 to a place
with open sky.
It is better to let the top surface
face to sky. (The same surface
with indication LED)
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