4
Power
off
：
Long
press
the
power
bu
tt
on
for
3
seconds
→
click
power
o
ff →
click
con
fi
rm
Screen
off
and
on
：
Short
press
power
button
to
turn
off
or
turn
on
screen
Mandatory
shutdown:
If
the
device
has
no
response,
long
press
the
power
button
for
6
seconds
to
perform
mandatory
power
off
Notice:
In
case
of
no
necessary
conditions,
It's
better
not
use
mandatory
power
off.
Power
off
should
be
performed
normally
according
to
the
standard
steps.
3
．
Desktop
3
‐
1
Introduction
of
Main
Interface
Press
and
hold
the
power
button
to
boot
up
the
machine,
the
screen
after
boot
‐
up
is
in
a
locked
state,
slide
on
unlock
icon
to
unlock,
then
you
will
enter
the
main
interface
as
shown
below.
Through
this
interface
you
can
browse
menu
used
recently,
replace
wallpaper,
add
widgets
or
program
shortcut,
open
procedures
or
carry
out
other
operations.
3
‐
1
‐
1.Status
bar:
tap
on
status
bar
at
the
lower
right
corner
with
finger,
you
can
open
notification
bar
to
read
prompt
message,
networking
status,
battery
status,
and
check
date
and
time.
3
‐
1
‐
2.Return
button:
tap
with
finger,
you
can
return
to
the
previous
operation
or
exit
the
application
program.
3
‐
1
‐
3.
Main
interface:
tap
main
interface
button
to
enter
the
main
interface:
