1
User manual
Precautions
This
manual
contains
important
information
regarding
safety
measures
and
proper
use
of
the
product.
To
avoid
accident,
please
be
sure
to
read
the
manual
carefully
prior
to
use
the
product.
Keep
the
product
away
from
high
temperature,
moisture
or
dust.
Do
not
expose
the
product
to
high
temperature,
especially
in
a
window
‐
closed
vehicle
during
summer.
Avoid
drop
or
strong
collision
of
the
product
or
heavy
vibration
of
the
TFT
screen,
as
it
may
cause
damage
or
abnormal
display
of
the
TFT
screen.
Please
choose
appropriate
volume.
It
is
not
recommended
to
use
earphones
in
high
volume.
If
ringing
occurs
in
the
ear,
please
lower
the
volume
or
stop
using
the
device.
Please
charge
under
the
following
circumstances:
A.
The
battery
icon
indicates
no
power.
B.
The
system
automatically
shuts
down,
and
immediately
shuts
down
again
after
restart.
C.
The
operating
button
does
not
respond.
D.
The
red
icon
is
displayed
in
the
lower
right
corner
of
the
product.
Note:
This
product
cannot
be
used
with
any
unauthorized
charger;
otherwise
it
may
burn
the
product,
which
is
not
covered
by
warranty.
For
any
additional
original
charger,
please
contact
customer
service.
The
Li
‐
ion
battery
cells
in
the
battery
pack
are
not
user
serviceable.
When
battery
level
is
low,
Recommendation:
use
the
A/C
wall
adapter
supplied
with
the
product.
Please
operate
the
product
properly
following
the
user
manual’s
guidelines.
Do
not
disassemble
the
product.
Do
not
use
alcohol,
thinner
or
benzene
to
clean
the
surface
of
the
product.
Do
not
operate
device
where
the
use
of
electronic
equipment
is
prohibited,
such
as
on
airplanes.
To
avoid
any
accidents,
please
do
not
use
the
product
when
driving
or
walking
on
the
street.
USB
connection
is
for
data
transfer
only.
*As
the
product
may
undergo
modifications
and
improvements,
product
specifications
and
design
are
subject
to
change
without
prior
notice.
NOTE:
Pictures
in
this
manual
are
for
reference
only.
1. The Home Screen
1.1 Home Screen
After
turning
on
the
device,
the
locked
home
screen
is
displayed.
