Step
4:
Connect
the
mobile
device
to
C1
USB
port
via
micro
‐
USB
cable.
4.
Powering
on
C1
Press
the
power
button
once
to
check
the
current
battery
level.
Press
once
and
then
press
again
and
hold
for
2
seconds
to
power
on
the
C1.
(Repeat
the
above
steps
again
to
power
off
the
C1)
Ready
to
Fly
1.
Place
the
aircraft
on
flat
ground
in
an
open
place
with
rear
LED
flight
indicators
facing
you,
and
then
power
on
the
C1
and
aircraft.
2.
Connect
C1
and
mobile
device.
3.
Launch
DJI
App,
make
sure
the
GPS
mode
has
been
selected.
4.
Calibrating
Compass
Always
calibrate
compass
before
your
flight.
Step
1:
Go
into
the
App
camera
GUI
and
tap
the
button,
select
“calibrate
compass”
to
start
the
process,
the
rear
LED
flight
indicator
will
be
solid
blue
at
this
time.
Step
2:
Hold
aircraft
horizontally
then
rotate
360°
around
the
center
axis
until
rear
LED
flight
indicator
will
be
solid
green.
Step
3:
Hold
aircraft
vertically
with
nose
pointing
to
the
ground,
rotate
360°
around
the
center
axis
until
rear
LED
flight
indicator
will
be
blink
purple.
The
process
is
completed.
If
rear
LED
flight
indicator
is
solid
red,
calibration
has
failed.
Re
‐
calibrate
by
repeating
step
1
‐
3.
5.
Description
of
rear
LED
indicator
Blinking
purple
：
GPS
〉＝
6
or
hover
assistant
is
functioning
，
it
is
safe
for
flight.
Blinking
yellow:
No
GPS
protection.
Blinking
red:
System
error
occurs.
*
Refer
to
Appendix
for
more
information.
6.
Go
into
the
camera
GUI
and
tap
check
list,
ensure
everything
is
functioning
normal.
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