I have had drones from the Phantom 2, Inspire and now Phantom 4 Pro.  I was flying at the beach when suddenly lost connection and watched as it eventually dropped into the ocean after about 5 minutes.  It had updated the Home point but never returned as advertised when losing connection.

Contacted support and there is nothing DJI will do for me.  I checked all sensors and connections as always before flying.  First time in all my years of flying this happened.

Sad that DJI doesn't stand behind their equipment when it doesn't work as advertised when beyond the warranty.  

What other companies have good drones?

Hi there, we're sorry to read the accident. According to the current policy, if the unit is out of warranty, I'm afraid that data analysis service will not be provided for free. Hope for your understanding. Also, may I know have your phone number and email address when you contacted our support? We'd like to see if there is anything else we can do for you.