MM feeling sluggish and dropping mid-air?

[Wavey]

I have used my MM for the first time in nearly 2 weeks due to bad weather and my flight started out OK but then I noticed it wobbling mid-air and i just kept bringing it back and forward to myself to see if it was repeating the issue which it was. It then started dropping slightly midair to the point of it crash landed into the grass from a low height. I have uploaded the logs and see slight cell deviation amber/read but im not exactly sure what im looking at? The only issue I can think is my batteries were still charged up from 2wks ago. I dont want to fly until I understand what happened there is also no damage to the props or body before or after flight

DJI Flight Log Viewer | Phantom Help

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DJI Flight Log Viewer | Phantom Help

Upload and view flight logs from your DJI drones

www.phantomhelp.com

DJI Flight Log Viewer | Phantom Help

Upload and view flight logs from your DJI drones

www.phantomhelp.com

 

[sar104]

Can you check to see if you have any mobile device DAT files available?

 

[Wavey]

Can you check to see if you have any mobile device DAT files available?

I do have these where do I upload these sorry?

 

[sar104]

I do have these where do I upload these sorry?

The best way is probably to upload them to Dropbox or Google Drive and then post a link back here.

 

[Wavey]

The best way is probably to upload them to Dropbox or Google Drive and then post a link back here.

DAT files MM - Google Drive

drive.google.com

There they are thankyou.

 

[slup]

The event occurred in the end of the second log link in your first post right..?

In this flight ..?



Go for it @sar104 ... I need to hit the bed now

 

[Wavey]

The event occurred in the end of the second log link in your first post right..?

I noticed the issue in the first log
The second log was me trying to replicate the issue
the third is where it got a bit worse then it dropped a few feet to the ground

 

[slup]

After a quick look ...It's really hard to see were it can be ...

In the first flight, mostly sport mode, the AC does what you command it to do, nothing strange.

In the second flight you zip around in high speeds i sport mode back & forth ... again the AC mainly does what it's told ... but due to the high speeds & abrupt braking the AC dips a bit but then regains height.

In the third it's about low height, low speed flying ... nothing strange there at all, besides that the VPS height reports one ground level dip according to below at 17sec after motor start ... is it that you mean?

 

[Wavey]

After a quick look ...It's really hard to see were it can be ...

In the first flight, mostly sport mode, the AC does what you command it to do, nothing strange.

In the second flight you zip around in high speeds i sport mode back & forth ... again the AC mainly does what it's told ... but due to the high speeds & abrupt braking the AC dips a bit but then regains height.

In the third it's about low height, low speed flying ... nothing strange there at all, besides that the VPS height reports one ground level dip according to below at 17sec after motor start ... is it that you mean?

View attachment 93196

It was like visibly unsteady mid air when moving forward and back but would hover fine
I was getting 'Max power reached' error on the screen or what the similar error would be.

 

[sar104]

I also don't see anything particularly unusual in these flights. There is significant pitch instability in the last flight, but that's due to erratic elevator input.