Troubleshooting - Concox GT300 User Manual

command/call to activate checking location function. During this mode, arm/disarm will not be executed. It will
reply: "The terminal is in Deep Sleep mode. Please wake up!"
Send SMS command: mode,3#
7 Appendix
7.1 Battery security
● Please use the original battery. The warranty will be invalid by using any other accessory. The manufacturer will
not take any responsibility for any damage caused by not using the original battery.
● The new battery can realize the optimal performance after fully- charging for 2 or 3 times.
● The battery can be used for hundreds of times, yet it will wear out eventually. When its talking time and standby
time shrinks sharply, you need a new one.
● Cut off power supply when not using the charger. Don't charge the battery for more than one week, since over
charging will reduce its using time.
● Do not short-circuit the battery with metal stuff (such as the key in your pocket)
● Do not bend or open the battery.
● Do not put the battery into water or fire.
● The battery should never be charged at temperature below 0 degrees or above 45 degrees Celsius.
7.2 Trouble shooting
If there is any problem while operating the terminal, please refer to the following table, or contact your service
provider.
Common problems
Bad reception
The terminal cannot
switch on
Cannot make voice
monitoring
Cannot connect to the
network
Causes
Near the tall building or in the basement
No battery power
No preset SOS numbers
SIM card is without Caller ID function
SIM card is not inserted correctly
The sheet mental of SIM card is Dusty
Invalid SIM card
Out of GSM service area
Solution
Change to a place with good signal
Change a new battery
Set SOS numbers
Activate the function
Check the SIM card
Wipe it clean
Contact your internet service provider
Move back to the GSM service covered area.