Hi Fikri,
The DJI Phantom 3 SE is not officially supported by our app. From the information I have at the moment, there are no short-term plans to support this specific drone.
There were some users that were able to use the drone by selecting the DJI Phantom 4 in general settings. We have, however, never tried this workaround and we also do not have additional information about the unsupported drones.
More information here: Pix4Dcapture - Phantom 3k and phantom 3 SE 4k
Best,