Aircraft
Phantom 3 4K
User Manual
12
©
2016 DJI. All Rights Reserved.
Aircraft Status Indicator Description
Normal
Red, Green and Yellow Flash
Alternatively
Turning On and Self Diagnostic Testing
Green and Yellow Flash Alternatively
Warming Up
Green Flashes Slowly
Safe to Fly (P-mode with GPS and Vision
Positioning)
X2
Green Flashes Twice
Safe to Fly (P-mode with Vision Positioning but
without GPS)
Yellow Flashes Slowly
Safe to Fly (A-mode but No GPS and Vision
Positioning)
Warning
Fast Yellow Flashing
Remote Controller's Signal Lost
Slow Red Flashing
Low Battery Warning
Fast Red Flashing
Critical Battery Warning
Red Flashing Alternatively
IMU Error
— Solid Red
Critical Error
Red and Yellow Flash Alternatively
Compass Calibration Required
Return-to-Home (RTH)
The Return-to-Home (RTH) function brings the aircraft back to the last recorded Home Point. There are
three types of RTH procedures: Smart RTH, Low Battery RTH, and Failsafe RTH. This section describes
these three scenarios in detail.
GPS
Description
Home Point
If a strong GPS signal was acquired before takeoff, the Home Point
is the location from which the aircraft was launched. The GPS signal
strength is indicated by the GPS icon (
). The aircraft status
indicator will blink rapidly when the home point is recorded.
Smart RTH
Use the RTH button on the remote controller (refer to “RTH button” on page 26 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.
