Gosafe Company Limited
Gosafe Company Limited
G777 User Manual
Version 2.01
Prepared By Mr. Chen
Approved by Mr. Yang
Dated: 2011-05-18
27
7. LED Flashes & Relevant Device Status
There
is
an
external
LED
light
to
reflect
device
status
in
G777.
In
order
to
check
device
status
through
this
LED
light
flashes,
LED
is
located
right
next
to
the
USB
port.
When
device
is
at
work,
LED
will
flash
at
8
‐
sec
cycle
constantly
to
show
related
GSM
and
GPS
status
in
each
cycle.
In
each
flash
cycle
when
device
is
at
work,
LED
will
flash
to
indicate
GSM
status
first
then
GPS
status
(there
is
an
interval
between
them).
To
check
the
statuses,
please
count
the
LED
light
flashes
then
compare
it
to
the
chart
below:
Status
LED
Flashes
Device
Power
on
LED
ON
<1sec
GSM
module
ON
but
unregistered
1
flash
at
the
beginning
of
each
flash
cycle
GSM
module
ON
and
registered
2
flashed
at
the
beginning
of
each
flash
cycle
GSM
module
OFF
No
flash
at
the
beginning
of
each
flash
cycle
GSM
module
on
and
registered
3
flash
then
GPRS
connection
GSM
module
on
and
registered
4
flash
then
TCP
connection
GPS
module
ON
but
haven’t
located
1
flash
after
interval
(behind
GSM
status
flash)
in
each
flash
cycle
GPS
module
ON
and
located
2
flashes
after
interval
(behind
GSM
status
flash)
in
each
flash
cycle
GPS
module
OFF
No
flash
after
interval
(behind
GSM
status
flash)
in
each
flash
cycle
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
1sec
then
flash
quickly
,
which
helps
trouble
shoot
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
SMS
Sending
Error
5
flashes
To
check
whether
there
is
SIM
card
SMS
center
setting
error
and/or
GOSAFE