Critical Issue Discovered
- Thread starter Bill Schroeppel
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From a post of VC Tech on Litchis Web Site:
"This so-called critical issue only happens when the aircraft is being controlled by an app.
In Litchi's case it only affects the focus and follow modes. In Follow mode a signal loss is relatively unlikely and if it happens in general the operator won't be far and would have time to react. In Focus mode, you would have to be careful but in most use cases signal loss probably isn't a concern."
Edit: be careful with the Follow Touch Mode
"This so-called critical issue only happens when the aircraft is being controlled by an app.
In Litchi's case it only affects the focus and follow modes. In Follow mode a signal loss is relatively unlikely and if it happens in general the operator won't be far and would have time to react. In Focus mode, you would have to be careful but in most use cases signal loss probably isn't a concern."
Edit: be careful with the Follow Touch Mode
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+1
Not a single glitch with the Air 2. Smooth as butter not a single shutdown nothing. Not that a shutdown would be horrible because it isn't you can still bring it back. Press the button if you don't know where it is take over when you see it. Or.. Fly it back if you see it. Practice ... Main reason I went with iOS is I really hadn't heard of any big problems with it..
Phantom 3 Pro / iPad Air 2
There is your problem.... I have a Mini 4, iPhone 6+ and Air 2 and never had a single glitch to complain about when running GO... But yeah now that i read this more carefully, This bug should not affect you much... according to litchi...
Is the problem that people have installed public fw 1.6 on their phantom yet the most current sdk fw is 1.5.0011?
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I would be interested to know if this problem existed on all recent firmwares and if not in which was it introduced?
The difference between Litchi and Autoflight Logic is that AFL maintains control of the Phantom throughout rather than upload the coordinates and sending it on its way.
However the issue is affecting the firmware so I guess its possible if signal was lost for a whole host of reasons like local interference when the Phantom is close by it could result in RTH not working. Not the end of the world provided you can resolve the signal issue and bring it back to land.
I think it was a good idea to alert people in the way they did.
The difference between Litchi and Autoflight Logic is that AFL maintains control of the Phantom throughout rather than upload the coordinates and sending it on its way.
However the issue is affecting the firmware so I guess its possible if signal was lost for a whole host of reasons like local interference when the Phantom is close by it could result in RTH not working. Not the end of the world provided you can resolve the signal issue and bring it back to land.
I think it was a good idea to alert people in the way they did.
An undocumented bug in the firmware, in the following scenario:
1) Phantom RTH due to loss of signal
2) Operator cancels RTH, thus over-riding fail-safe
3) Operator resumes flight and once again has loss of signal
4) Phantom does not RTH as fail-safe has been over-ridden
1) Phantom RTH due to loss of signal
2) Operator cancels RTH, thus over-riding fail-safe
3) Operator resumes flight and once again has loss of signal
4) Phantom does not RTH as fail-safe has been over-ridden
Litchi is saying there isn't any problems with RTH with there app. I haven't ever lost signal so I can't say one way or the other .
I just used Lichie in a flight that lost signal for three minutes and it flew the entire mission with no problems.
Sent from my iPhone using PhantomPilots mobile app
DJI will have direct access to the software on the drone, where third party software will have to use their public API.
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Good to know. Thanks for that report.
I have to agree here. Using 3rd party apps is only asking for problems. This thread is a glaring example of that.
Seems like telling a person they were asking to be assaulted because of the way they dressed.
It appears Autopilot misspoke a little initially. I don't think it's as big of an issue as they initially stated. I don't see this as a reason not to use 3rd party apps. It's certainly a big mistake on DJI's party, no one else.
That's how monopolies are started and innovation is stifled. DJI have a dedicated API that is created for the sole purpose of third parties.
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I'm completely up to date and flew with Litchi today,in awful weather. A passer by was showing some interest, so I demonstrated the RTH by turning the rc off and it worked perfectly!
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That's a bollocks statement. I only use Litchi and have not had one single issue, like thousands of others.
