dji PHANTOM 4 PRO User Manual - Page 16
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Phantom 4 Pro/Pro+ User Manual
Smart RTH
Use the RTH button on the remote controller (refer to "RTH button" on page 33 for more information) or
tap the RTH button in the DJI GO app and follow the on-screen instructions when GPS is available to
initiate Smart RTH. The aircraft will then automatically return to the last recorded Home Point. You may use
the remote controller's control sticks to control the aircraft's position to avoid a collision during the Smart
RTH process. Press and hold the Smart RTH button once to start the process, and press the Smart RTH
button again to terminate the procedure and regain full control of the aircraft.
Low Battery RTH
The low battery level failsafe is triggered when the DJI Intelligent Flight Battery is depleted to a point that
may affect the safe return of the aircraft. Users are advised to return home or land the aircraft immediately
when prompted. The DJI GO app will display a notice when a low battery warning is triggered. The
aircraft will automatically return to the Home Point if no action is taken after a ten-second countdown. The
user can cancel the RTH procedure by pressing the RTH button on the remote controller. The thresholds
for these warnings are automatically determined based on the aircraft's current altitude and distance from
the Home Point.
The aircraft will land automatically if the current battery level can only support the aircraft long enough
to descend from its current altitude. The user can still use the remote controller to alter the aircraft's
orientation during the landing process.
The Battery Level Indicator is displayed in the DJI GO app, and is described below:
Critical Low battery level
warning(Red)
Battery Level
Remark
Warning
Low battery
The battery
level warning
power is low.
Please land the
aircraft.
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2016 DJI. All Rights Reserved.
level(Green)
Low battery
level warning(Yellow)
Power requires
to return home
Battery level Indicator
Aircraft Status
Indicator
Tap "Go-home" to have the
aircraft return to the Home
point and land automatically,
or "Cancel" to resume normal
Aircraft status
flight. If no action is taken,
indicator blinks
the aircraft will automatically
RED slowly.
go home and land after 10
seconds. Remote controller
will sound an alarm.
12:29
DJI GO App
Flight Instructions
Fly the aircraft
back and land
it as soon as
possible, then
stop the motors
and replace the
battery.