Queclink GL200 User Manual download pdf (Page 17)

GL200 User Manual

4. Troubleshooting and Safety info

4.1. Troubleshooting

Trouble Possible Reason Solution

The SIM card is not inserted. Please insert the SIM card into

GL200.

The signal is too weak;

GL200 can’t register to the

network.

Please move GL200 into place

with good GSM coverage.

After GL200 is turned on, the

GSM LED flashes quickly

always.

PIN locked Using SIM card without

SIM-PIN, or unlock SIM-PIN.

The SIM card in GL200

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.

The function of power key

was disabled by AT+GTSFR.

Enable the function of power

key by AT+GTFKS.

Unable to power off GL200.

Unable to power off GL200 if

charger connected or using

external battery.

Disconnect charger or external

battery, 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.

No response from UART when

configure GL200 through

UART

GL200 is in power saving

mode.

Re-try GL200 manager tool

again, it will try to wake up

device.

Please move GL200 to a place

with open sky.

GL200 can’t get successful

GPS fixing.

The GPS signal is weak.

It is better to let the top surface

face to sky. (The same surface

with indication LED)

TRACGL200UM001 - 16 -

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