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Wobbling engines take off/landing
823 33 2018-2-16
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dronybaloney
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Since i have upgraded to 01.05.300 fw , i am getting wobbling engine and arms , upon take off( slowly thrust up you can see the trembling) and also landing. During flight its hard to see, but its bassically when phantom is in contact with ground.i have seen already several posts about this and apparently dji engineers are working on it,  so far no feedback yet from moderators if it has been solved. I have send my p4p in for repair as small cracks(already posted) appearred suddenly after 8 months). anyway dji is repairing this under warranty luckily.
Now my questions arr what should i do when i am receiving my p4p back from repair.
Wait for a new update ? or downgrade to fw 01.04.602 ?
Anyone has experience with downgrading? Is it easy? And will .602 work with dji go app 4.2.6?
2018-2-16
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DJI Susan
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Sorry for the late response due to the holiday. May I know what's the current status? Have you received the unit? Regarding the wobble issue, we will appreciate if you can export the flight data for analysis, thanks for your time.

2018-2-23
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Giammi
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I have the same issue on P4Pro+ since last firmware update. During flight it looks smooth, but during take off and landing arms are wobbling.
2018-2-23
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dronybaloney
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Sorry i have no data available as received different drone. I have downgraded fw back to .602 , so previous one , and the vibration is gone. So maybe you can inform engineers first do more testing before publishing a new firmware. Maybe they can compare the latest firmware with the previous one , and find the bug that causes this vibration
2018-2-23
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dronybaloney
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Also with the latest fw , this wobbling, there will be a very very big chance that cracks will appear and big chance you have to send the drone for repair or worst lose it. I recommend not to fly with this latest fw. I am 99 pct sure this vaused my cracks maybe together with tempature changes
2018-2-23
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Giammi
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dronybaloney Posted at 2018-2-23 01:26
Sorry i have no data available as received different drone. I have downgraded fw back to .602 , so previous one , and the vibration is gone. So maybe you can inform engineers first do more testing before publishing a new firmware. Maybe they can compare the latest firmware with the previous one , and find the bug that causes this vibration

Did you tested it with DJI GO APP 4.2.6? Thank you
2018-2-23
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dronybaloney
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App 4.2.5 and 4.2.6 with
.602 versions works.
Only above version apps create bad videofeed with ipad mini 4. Therefore i use ipad pro
2018-2-23
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DJI Susan
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Giammi Posted at 2018-2-23 01:20
I have the same issue on P4Pro+ since last firmware update. During flight it looks smooth, but during take off and landing arms are wobbling.

Hello Giammi, we are still collecting the data for further analysis. Could you refer the video and 2# and export the flight data? Appreciate your understanding.
2018-2-23
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DJI Susan
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dronybaloney Posted at 2018-2-23 01:26
Sorry i have no data available as received different drone. I have downgraded fw back to .602 , so previous one , and the vibration is gone. So maybe you can inform engineers first do more testing before publishing a new firmware. Maybe they can compare the latest firmware with the previous one , and find the bug that causes this vibration

Anyway, thanks for keeping us updated and nice to know your drone work well.
2018-2-23
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Giammi
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DJI Susan Posted at 2018-2-23 04:39
Hello Giammi, we are still collecting the data for further analysis. Could you refer the video and 2# and export the flight data? Appreciate your understanding.

Dear Susan, here you can find it: https://we.tl/4WLO9ZzcQ7
Looking at it from the viewer, definitely looks that the take off has a weird behavior, but it's better that DJI engineers look into it.
2018-2-23
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Giammi
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DJI Susan Posted at 2018-2-23 04:39
Hello Giammi, we are still collecting the data for further analysis. Could you refer the video and 2# and export the flight data? Appreciate your understanding.

Dear Susan, today I got the chance to take a brief slow-motion movie of the issue. As you can see, I just turned on the motors and pulled a bit the left stick up, just to increase the lift a little bit. This is the result. During the flight no issues, but it can also be that the frequency is so high, that cannot be spotted by naked eye. BTW, I'm flying the latest firmware on both RC and AC with P4P+.
You can download the file from here: https://we.tl/O0l9EChqOO
PS: propellers are genuine DJI ones. They're the obsidian version, no third party.
2018-2-24
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dronybaloney
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Giammi Posted at 2018-2-24 11:13
Dear Susan, today I got the chance to take a brief slow-motion movie of the issue. As you can see, I just turned on the motors and pulled a bit the left stick up, just to increase the lift a little bit. This is the result. During the flight no issues, but it can also be that the frequency is so high, that cannot be spotted by naked eye. BTW, I'm flying the latest firmware on both RC and AC with P4P+.
You can download the file from here: https://we.tl/O0l9EChqOO
PS: propellers are genuine DJI ones. They're the obsidian version, no third party.

I would downgrade back to 602 fw for the time being untill dji comes up with a sollution , as i will bet you soon have stress cracksif keep flying with this one
2018-2-24
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Giammi
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dronybaloney Posted at 2018-2-24 11:20
I would downgrade back to 602 fw for the time being untill dji comes up with a sollution , as i will bet you soon have stress cracksif keep flying with this one

Yes, I was planning to do exactly what you said. I don't want to risk to crack it.
2018-2-24
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dronybaloney
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Giammi Posted at 2018-2-24 11:50
Yes, I was planning to do exactly what you said. I don't want to risk to crack it.

Yes let me know , when you done it and if you see any difference. I am curious if yours is also not or less wobbling
2018-2-24
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fans55ae5496
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dronybaloney Posted at 2018-2-23 01:26
Sorry i have no data available as received different drone. I have downgraded fw back to .602 , so previous one , and the vibration is gone. So maybe you can inform engineers first do more testing before publishing a new firmware. Maybe they can compare the latest firmware with the previous one , and find the bug that causes this vibration

Ah  yes Drony, wouldn't it be nice if DJI tested their software instead of charging us for the honor of doing so...
2018-2-24
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dronybaloney
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Yes looks like , we are all guinea pigs.as testcases. And than blame us for breaking the drone
2018-2-24
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Giammi
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dronybaloney Posted at 2018-2-24 12:07
Yes let me know , when you done it and if you see any difference. I am curious if yours is also not or less wobbling

First of all tomorrow I'll try to use the original white propellers. I just want to exclude that the obsidian ones are not an issue. After the Mavic Pro case, it's better to make sure of everything. I'll let you know BTW.
2018-2-24
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Giammi
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dronybaloney Posted at 2018-2-24 12:44
Yes looks like , we are all guinea pigs.as testcases. And than blame us for breaking the drone

White propellers have the same issue. Let's wait for @DJI Susan to answer.
2018-2-26
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dronybaloney
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Giammi Posted at 2018-2-26 23:22
White propellers have the same issue. Let's wait for @DJI Susan to answer.

Try downgrading to .602 and see if wobblng is gone! At least i cant see it anymore.

You alwas can upgrade to the latest fw again
2018-2-26
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dronybaloney
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Regarding dji ( susan and others) they have enough reviews now regarding this vibration. I havent seen any answers yet , of not flying the drones with latest fw. And/or if they are working on it and are aware of the issue. Well i am definately not flying with fw .300
2018-2-26
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tompahr
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I have beta .301 and have not any visible wobbling! Can you make video, I would like to see how that look? Thanks!
2018-2-27
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Giammi
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dronybaloney Posted at 2018-2-26 23:25
Try downgrading to .602 and see if wobblng is gone! At least i cant see it anymore.

You alwas can upgrade to the latest fw again

Yep, I'll give at try as soon as I can. Do you know if is Pano Mode included in .602 already?
2018-2-27
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dronybaloney
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Yes , i can see pano mode. But have never actually used it
2018-2-27
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tompahr
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With .602 you can see pano but does not work.
2018-2-27
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dronybaloney
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tompahr Posted at 2018-2-27 01:48
With .602 you can see pano but does not work.

ok I was not aware of pano not working. but I think its more important for the wobbling to stop ,than that pano works . Wobbling will cause cracks and than the whole drone is not working anymore , pano included
2018-2-27
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dronybaloney
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tompahr Posted at 2018-2-27 00:06
I have beta .301 and have not any visible wobbling! Can you make video, I would like to see how that look? Thanks!

I actually cannot give you a video anymore as I have downgraded the fw / but I noticed on the p4 forum , same issues and someone posted a video . This is exactly what happened to my p4p with fw .300
https://forum.dji.com/forum.php? ... D368%26typeid%3D368
2018-2-27
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tompahr
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It does not look good! Fortunately, I have no such problem.
2018-2-27
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Giammi
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dronybaloney Posted at 2018-2-27 02:51
I actually cannot give you a video anymore as I have downgraded the fw / but I noticed on the p4 forum , same issues and someone posted a video . This is exactly what happened to my p4p with fw .300
https://forum.dji.com/forum.php?mod=viewthread&tid=137245&extra=page%3D1%26filter%3Dtypeid%26typeid%3D368%26typeid%3D368

I downgraded to .602 and vibrations are gone. Now let's wait again DJI to fix this issue.
2018-2-27
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dronybaloney
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See. The new fw is the issue, but it takes already a hell of a time for dji to fix this, and meanwhile its a hazzard for safety and drone damages
2018-2-27
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dronybaloney
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And if dji comes again with new fw, the question is , and  guess again if a) it solves the vibration and b) if this fw causes again other different issues. Regarding there updates nowadays( including the dji go app) i really do not have confidence in them anymore. I rather stick with the .602 fw , at least i now know what i have got.
2018-2-27
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DJI Susan
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Giammi Posted at 2018-2-24 11:13
Dear Susan, today I got the chance to take a brief slow-motion movie of the issue. As you can see, I just turned on the motors and pulled a bit the left stick up, just to increase the lift a little bit. This is the result. During the flight no issues, but it can also be that the frequency is so high, that cannot be spotted by naked eye. BTW, I'm flying the latest firmware on both RC and AC with P4P+.
You can download the file from here: https://we.tl/O0l9EChqOO
PS: propellers are genuine DJI ones. They're the obsidian version, no third party.

Received with thanks! I'll forward to our engineers for review. Could you export the flight log for better analysis? We appreciate your cooperation.
2018-2-28
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Giammi
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DJI Susan Posted at 2018-2-28 01:38
Received with thanks! I'll forward to our engineers for review. Could you export the flight log for better analysis? We appreciate your cooperation.

I already did it. You can download them here at post #11 https://forum.dji.com/forum.php? ... amp;fromuid=1475881
2018-2-28
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DJI Susan
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Giammi Posted at 2018-2-28 04:25
I already did it. You can download them here at post #11 https://forum.dji.com/forum.php?mod=redirect&goto=findpost&ptid=136078&pid=1217593&fromuid=1475881

It seems that I missed some info. Thanks for the confirmation. I've downloaded and forwarded to engineers.
2018-3-2
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wisnia.sebastian
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Don't worry, this problem can only occur on ground and has no influence to flight. It will be fixed soon.
2018-3-5
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