I had the SAME problem with my
Mavic 2 Pro. Was in tripod mode, very slowly moving backward about 1 1/2 feet above a pond. As it neared the bank where I was standing, "it said" "LANDING"...Since it was so low there was not enough time to about landing and it "landed on a marshy bank" in about 2 inches of water.
I quickly recovered it aand dried it off. No physical damage although as it was "landing" the rear props nicked some tall grass-like plant.
I let it dry out at home for a few days and turned it on. It went through gimbal dance and all, but did not beep and would not connect to my
smart controller.
I sent it to drone Nerds for repair.
Drone Nerds said they cannot replace anything with water damage and that it has to go to DJI.
I opened a case with DJI online.
Then I received a quote for $1180. *they didn't even have the drone yet !)
They they said I'll get a discount and I only have to pay $812.
I asked what items needed repair and/or replacement and how much labor time at what rate.
I went back and forth many times via email, explaining that this was a malfunction. Uncommanded auto landing.
I am experienced with flying drones with over 1000 flights logged with AirData.
I said that this should be warranty.
They said to send them the log file.
I said YOU HAVE THE LOG FILE on my Smart ControllerI included with the
Mavic 2 Pro.
They repeatedly asked for the log file and I repeated that they have the
Smart Controller.
They said if I don't pay the invoice, they will send it back unrepaired.
That took 3 weeks to get to that point.
I finally paid their $812 ransom.
This is h ow DJI operated. I have had similar issues with this scam before..