Device also uses LED flashes to indicate relevant error if any of the following
situations happens: Device Error, SIM card no balance, GSM network cannot
register. When there is any error above, LED light will ON for 1sec then flash
quickly, which helps to trouble shoot the errors; user can count LED quick
flashes then compare it to below chart:
Error Details
LED Flashes
Solutions
GSM module Communication
Error
1 flash
Power OFF then check GSM module power
supply and communication
SIM card Error
2 flashes
Power OFF then check whether SIM
installation is good and PIN is disabled
Cannot register at GSM network 3 flashes
To check whether SIM card is overdue and/
or device in an area there is no GSM signal
GPS module Error
4 flashes
Power OFF then check GPS module power
supply and communication
To check whether there is SIM card SMS
SMS Sending Error
5 flashes
center set-ting error and/or SIM card is
overdue
Can't use GPRS
6 flashes
To check whether the APN is correct and
SIM has GPRS function or not
TCP connection Error
7 flashes
To check if the server is normal
Unknown Error
8 flashes
Power OFF then Power ON, if there is still
the error, please contacts us.
22
Summary of Contents for G626
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