table, or contact your service provider.
Common
problems
Causes
Solution
Bad reception
Near the tall building or
in the basement
Change to a place
with good signal
The terminal
can not
switch on
No battery power
Change a new
battery
Can not make
voice
monitoring
No preset SOS numbers Set SOS numbers
SIM card is without
Caller ID function
Activate the
function
can not connect
to the network
SIM card is not inserted
correctly
Check the SIM
card
The sheet mental of
SIM card is
dusty
Wipe it clean
Invalid SIM card
Contact your
internet service
provider
Out of GSM service
area
Move back to the
GSM service
covered area.
weak signal
Try again in a
strong signal area
can not charge
Voltage
is
out
of
charging range of the
charger
Change to the
proper voltage
Non-standard charger
Use charger that
come with the
package
Poor contact
Check if the plug
is in
Can not check
address
information
GPRS function is not
activated
Please contact the
SIM card operator
to activate GPRS
Can not get the position
data
1.restart the device
2.contact with
your distributor
It is not a SOS number
set SOS number
