hi, I would like to ask for help with a problem I have had several times. In fact, the drone often loses the signal by going 1 or 2 kilometers away (but even less sometimes). The other day he lost the signal going to 200 meters altitude. I do not think they are interference since I also have a mavic pro and it has no problem.

HI, we're sorry to hear about the unpleasant experience that you had with your Phantom 4 Pro. May I know if your firmware is updated to the latest version? If yes, can you please try to fly the aircraft in a different place? If the issue persists, please let us know for further help. Thank you.

Is this a loss of image transmission signal or the RC signal?

JDC93 Posted at 1-26 12:59
Is this a loss of image transmission signal or the RC signal?

the drone loses both the video signal and the rc signal

stefano64 Posted at 1-27 05:17
the drone loses both the video signal and the rc signal

Does this happen in other areas as well?

At a particular spot I fly at, I've lost the signal as little as 2 km out, and at the same spot I've been able to fly nearly 5 km out. Entirely dependent on RF noise in the area at that time.

This isn't to say you don't have a hardware issue, but it's something to think about.

I am having the same problem with my P4A+.

DJI Natalia Posted at 1-26 11:16
HI, we're sorry to hear about the unpleasant experience that you had with your Phantom 4 Pro. May I know if your firmware is updated to the latest version? If yes, can you please try to fly the aircraft in a different place? If the issue persists, please let us know for further help. Thank you.

The issue is persisting in my case. I have tried flying at many different locations to see if the issue is due to interference. I get the same problem to some degree no matter where I go.  All of my firmware is up to date.