Phantom 4 NFZ mod

Installation

  • Open Phantom 4 shell
    • Place Phantom 4 upside down
    • Disconnect and remove the camera with gimbal
    • Remove all screws from bottom
    • Disconnect 4 antennas
    • Slightly open shell and disconnect both compasses from mainboard
    • Remove bottom part of shell
  • Remove 4 screws that fix metal frame
  • Raise metal frame from upper shell. You need to get to GPS connector. Remove motor wires from glue near metal frame if required.
  • Disconnect 5 pin GPS cable from mainboard.
  • Connect GPS cable to extender and insert into gps port on NFZ board
  • Insert the second provided cable into phantom port on NFZ board and insert other end to GPS port on mainboard.
  • NFZ board could be controlled by two ways: by button or by remote.
    • For remote control: solder cable from NFZ board to 27 pin of Flight Control ( 7 pin from right side – please refer to the picture)
    • For button control: connect a button through antenna hole on the bottom shell.
  • Place the board inside top shell using hot glue or double sided tape.
  • Assemble Phantom

nfz board placement p4 button wire p4 nfz connection Phantom 4 GPS connector 2 place for NFZ board

Using

NFZ mod board allows you to fly using GPS positioning inside NFZ zones.  By default NFZ mod is not activated therefore you can use your Phantom 4 as usual. No NFZ correction will be applied.
There are two ways to activate NFZ mod:

  • Activate using button
    Click red button during first 3 seconds after power on of the battery.  It has six offset modes. One click mode is most useful in most situations. You can see position offset at your DJI Go screen after satellite position is fixed. Ensure that there is no fly zone near your false position otherwise restart battery and select other NFZ mode (1-6 clicks during 3 seconds).
  • Activate using Remote
    Power on your remote. Before powering on the battery set throttle (left) stick on you remote to the bottom position and hold it for about 10 seconds after powering the Phantom battery. It will activate defaults NFZ offset. It is can be used in most situation. You can see position offset at your DJI Go screen after satellite position is fixed. Ensure that there is no fly zone near your false position otherwise restart battery and select other NFZ offset. You can control NFZ offset by moving stick to right or left during initialization.

Be very careful with NFZ mod activated. Avoid mixing false and real coordinates.

  • Don’t use Dynamic Home Point
  • Don’t set position your remote position as home point
  • Don’t use Follow me
  • Don’t fly by pointing coordinates on map

Firmware

USB port on NFZ board is for NFZ board firmware updates.  We’ll keep testing NFZ board with new Phantom 4 firmware releases, but it is better to avoid updating Phantom without any need.