Option 1: Turn on the remote controller, then, while holding down the C1 and C2 buttons on the back of the remote controller, press the camera settings dial to reset.
Option 2: Flick the flight mode switch back and forth until the remote controller status indicator blinks red and green. This shows that the reset is in progress. Wi-Fi download reset is successful when the remote controller status indicator turns solid green.

The Phantom 3 4K is linked to the remote controller by default. Re-linking is only necessary if the remote controller is replaced.
To link a new remote controller:
1) Turn on the remote controller and connect to your mobile device.
2) Launch the DJI GO app.
3) Turn on the Intelligent Battery.
4) Enter “Camera” and tap on the remote controller icon and then tap the “Linking RC” button. The remote controller is now ready to link. The Remote Controller Status Indicator will blink blue and the controller will beep.
5) Locate the linking button on the side of the aircraft and press it to link. The Remote Controller Status Indicator LED will display a solid green once the remote controller has been successfully linked to the aircraft.

The remote controller is CE compliant by default and switching between CE and FCC is automatic based on aircraft location as determined by the DJI GO app.The CE compliant remote controller has an effective signal range of 0.31 miles (500 m) in open spaces.The FCC compliant remote controller has an effective signal range of 0.74 miles (1200 m) in open spaces. Be aware of your flying distance as the aircraft will enter Failsafe Return to Home if it flies beyond transmission range.

The Phantom 3 4K comes with a 16 GB Micro SD card and supports Micro SD cards with a capacity of up to 64 GB. UHS-1 or Class 10 Micro SD cards are recommended to minimize delay when reading or writing high resolution image files. Do not insert or remove the Micro SD card when the Phantom 3 4K is turned on.

1) Switch on the remote controller.
2) Turn on the aircraft.
3) On your mobile device, select “PHANTOM3_XXXXXX”“from your Wi-Fi network list, and enter the default password “12341234”.
4) Launch the DJI GO app and enter Camera View. A video signal from the aircraft’s camera indicates that the aircraft has established a connection to the Wi-Fi video downlink successfully.

1) Make sure it is sufficiently charged before each flight.
2) Lock the mobile device holder firmly in place to avoid slipping.
3) Unfold the antennae and keep them perpendicular to the Phantom for optimal transmission quality. Do not point the antenna at the Phantom.
4) Repair or replace the remote controller if damaged. A damaged remote controller antenna will greatly decrease performance. If a remote controller is replaced, please see Question 3 of this FAQ: How do I link the remote controller?