Hello sir,
Phantom 4 pro is repetedly asking for firmware update and while flying it is getting disconnected and returning home.
Please solve the issue asap.

What's the current firmware of the aircraft and controller? Have you tried to link RC?

Aloha Harsha,

     Download the P4 Pro manual with this link, it is on the Downloads page for the P4 Pro;

https://dl.djicdn.com/downloads/ ... _User_Manual_EN.pdf

When you look over the downloads page note how much important information is there.  It is very helpful.

     There are also videos that will explain the process for dealing with firmware updates.  Go to the Videos page of the P4 Pro product page.

http://www.dji.com/phantom-4-pro/info#video

On the left (Tutorials) scroll down and then click on "Load More".  There will be many more videos and down a few lines will be "Firmware Upgrade".  Remember, you have the P4 Pro, not the P4 Pro+ (plus).  Some of the instructions are different.  This will explain some of the important information you will need to understand your problem.

     There are two important conditions you will need to provide.  Most important is a rock solid Internet connection.  There is also a need to sign in with the DJI servers in order to fly beyond 50 meters.  (We call this the Anti-Terrorism requirement.)  After you have signed in the first few times, it will not be necessary most of the time.

     After you watch most of the videos, figure out what your problem could be and do what the videos say to solve your problem.  Then if you have a problem that the DJI web site does not appear to solve, come back here and ask us some more questions.

     Hope this helps!

Aloha and Drone On!

Thank you. Issue sorted