Me too. You should ask DJI why that happened.
Your flight log shows the remote controller sticks were in the CSC position here:
CSC to kill motors no longer works on Spark.
Edit: When flying the CSC to kill motors no longer works.
Edit: When flying the CSC to kill motors no longer works.
Last edited:
When the Spark was first released, CSC would work at anytime mid-flight. DJI later changed the default setting (which is hidden in DJI GO when using the Spark) to only activate mid-flight in an emergency situation.
Here's the setting that's available in DJI GO when flying most other DJI drones:
Here's the setting that's available in DJI GO when flying most other DJI drones:
Aha, you meant during flight. I always start and then sometimes stop (if I change my mind and not take off) the motors with this sticks position.
Rafa7
Well-Known Member
I would say no, what happens if the drone is over water? I would not want it to land once it goes into ATTI mode.
uasav8r
Active Member
Unfortunately, DJI will only go by the data recorded in the flight logs (not by what you recall happening). FYI, I've never seen incorrect data in a flight log.
Fortunately, the CSC part doesn't matter since that did not cause your Spark to ascend. I was just curious as to what happened at the end of the flight.
uasav8r
Active Member
I have already been convinced that this failure was my fault, so it does not matter what DJI thinks.
I see errors all the time between what is recorded and what the drone is doing, especially on DJI GO 4, e.g. drone is on landing pad and altitude shows 5 ft; same for airspeed.
How did you convince yourself of that?
The altitude is only estimated by the flight controller, so one should never expect it to be 100% accurate.
uasav8r
Active Member
1. By allowing the battery to get precariously low
2. Not intervening soon enough to cancel the RTH
Since our craft and software is man made, one should never expect anything to be 100% perfect. Look at the numerous software updates. Some were improvements and some were to correct mistakes.
Ah, yes. I think you could have recovered from the failure. However, I'm still not sure why the Spark decided to ascend while flying back to the home point. Very odd indeed.
uasav8r
Active Member
Received notification that my drone would be replaced and the cost was $69. They said it was my fault. I asked if they had diagnosed the problem from the data. Silence. Then they asked if I would send them the flight records (as you described how to do)
uasav8r
Active Member
DJI finally responded to my request for a more detailed explanation. When RTH is triggered due to low/critical battery levels the drone will return at the altitude set in “Return-to-Home Altitude” box. It ignores what is set in the “Return at Current Altitude” box regardless of alititude or distance from the homepoint
That's an interesting response. I'd ask them why that did not happen then. Your Spark was ascending and flying back to the home point at the same time. If it was supposed to ascend to the RTH altitude, it should not have started flying back to the home point until it reached the RTH altitude.
uasav8r
Active Member
Do you still have your TXT flight log? If so, please attach the TXT file here so I can review it again. I remember seeing something different.
uasav8r
Active Member
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