I used return to home feature.

Sorry to hear. I assume battery percentage was in good shape? And your fingers were not on the sticks?

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Nguyễn Thắng Posted at 2015-5-27 13:11
Thanks. The battery was definitely more than 50%. I might had thumbs but they should not interfere r ...

If you pull both to inner corners you can shut it down in air I thought.......

Maybe the battery was loose or not clicked in fully.  Sorry for your loss, call them for sure and file a claim.  They can look at the black box data and see what happened.

mackie1604 Posted at 2015-5-27 13:19
If you pull both to inner corners you can shut it down in air I thought.......

Maybe the battery  ...

But if the lights were still on, then the battery had to be working.

From your description. I assume it didn't shutdown with CSC, you can check your operation in flight record playback, and if possible sycn it to cloud thanks.
Pls contact NA support, we will help you.

lightpanther Posted at 2015-5-27 13:48
But if the lights were still on, then the battery had to be working.

Agreed.  Maybe the GPS altitude was slightly off so it assumed it was on the ground and shutdown power?

Please post your flight record for us to see what was happening when it fell.

Remember to buy extra propellers and one or two spare batteries to keep you flying

Nguyễn Thắng Posted at 2015-5-27 13:11
Thanks. The battery was definitely more than 50%. I might had thumbs but they should not interfere r ...

Which FW you used?

mackie1604 Posted at 2015-5-27 13:55
Agreed.  Maybe the GPS altitude was slightly off so it assumed it was on the ground and shutdown po ...

No I don't think it works like that... GPS altitude is not accurate enough.  I read somewhere on here that in drops at a controlled rate until it can't drop any further then shuts down the motors.  It controls (or should control) rate of decent but only uses sensors and GPS to tell it in can't drop any further so it must have landed.

I am sure that somewhere in the decent the sonar function kicks in to give it a reference to the ground. I don't know that for sure but it seems like it would be programmed to use that function.

Thumbs can definitely shut down the motors in mid-air.

The logs should show exactly what happened in this case.

At 50% battery why did you initiate RTH?

mswall@mac.com Posted at 2015-5-27 22:03
At 50% battery why did you initiate RTH?

IMO, It should not be possible to shut down the motors in midair without a big flashing warning you have to pro-actively click on at least once, if not twice, on the screen.

mswall@mac.com Posted at 2015-5-27 22:03
At 50% battery why did you initiate RTH?

It was my first time using RTH. I wanted to test the feature.

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DJI-Autumn Posted at 2015-5-27 13:49
From your description. I assume it didn't shutdown with CSC, you can check your operation in flight  ...

Hi -- Could you gfds jsw