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Spark Accelerates Up & Decelerate Down Automatically
2356 31 2017-8-26
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killers.jayanth
lvl.2
Flight distance : 33419 ft
India
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I Flew My Spark for around 8 Min with an Height of 30min with my Android phone and everything was fine..
And suddenly Spark Decelerate Downwards Step by Step Automatically As If the Power was Shutting off and On
And As it reaches the ground it doesnt Land even though the I switched the Land Option On
It Just Strikes and Bounces onto the ground and it continues to Fly Up and Down and Sounds as if the Motor is Shutting On and Off
This is not the first Time am Facing this Issue , It happens quite few times once in evry 3 flights approx
Am scared to fly it anymore as it may lead to any Crash am scared Loosing it.
I dont seem any Damage issue with the Spark as It runs Fine quite few times
Help me out with a Solution
2017-8-26
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lannes
Captain
Flight distance : 4465 ft
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Australia
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I would do a firmware refresh and a factory restore in the DJI Assistant 2
Also check the log files to see if you had battery voltage issues towards the end of your flight when it yo-yoed
2017-8-26
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DJI Diana
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Flight distance : 2408 ft

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Is the firmware up to date? Try to calibrate the IMU, then try to fly it again in an open area. If it is the same, please refer to the video below to export the data for analysis.
2017-8-28
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djiuser_saQ7SrE
lvl.2
Flight distance : 182562 ft
Malaysia
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I experienced the same problem before i upgraded my firmware to v1.6. Post v1.6, this issue no longer exist after 10+ flights.

Hope this could help you.
2017-8-28
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killers.jayanth
lvl.2
Flight distance : 33419 ft
India
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Issue Finally Solved. Its the Battery which does all this Stuff. Now Works Fine with the Other Batteries
2017-8-30
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Efrommel13
lvl.2
Flight distance : 73606 ft
Puerto Rico
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killers.jayanth Posted at 2017-8-30 21:57
Issue Finally Solved. Its the Battery which does all this Stuff. Now Works Fine with the Other Batteries

what happend to the battery that had the problem?
2017-8-30
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killers.jayanth
lvl.2
Flight distance : 33419 ft
India
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Efrommel13 Posted at 2017-8-30 22:50
what happend to the battery that had the problem?

needs to be returned but i dont wanna wait so long so gonna order a new one soon
2017-8-30
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Andrew Chen
lvl.1
Flight distance : 52428 ft
Taiwan
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killers.jayanth Posted at 2017-8-30 23:08
needs to be returned but i dont wanna wait so long so gonna order a new one soon

so are you saying that DJI officially points out its battery problem?
i'm facing the same issue and really annoying me.
2017-9-3
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DJI Diana
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Flight distance : 2408 ft

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killers.jayanth Posted at 2017-8-30 21:57
Issue Finally Solved. Its the Battery which does all this Stuff. Now Works Fine with the Other Batteries

Could you please provide more details about this? What happened to the battery? I don't think the battery is doing anything with this issue, I would still recommend you export the data for analysis.
2017-9-3
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DJI Diana
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Andrew Chen Posted at 2017-9-3 09:47
so are you saying that DJI officially points out its battery problem?
i'm facing the same issue and really annoying me.

Andrew, I've replied your another post, please check it.
2017-9-3
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Andrew Chen
lvl.1
Flight distance : 52428 ft
Taiwan
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DJI Diana Posted at 2017-9-3 19:44
Andrew, I've replied your another post, please check it.

Thank you.
2017-9-3
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killers.jayanth
lvl.2
Flight distance : 33419 ft
India
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DJI Diana Posted at 2017-9-3 19:38
Could you please provide more details about this? What happened to the battery? I don't think the battery is doing anything with this issue, I would still recommend you export the data for analysis.

I thought it was an Battery issue but today i confirmed that the issue is with the motor.
As i have seen after landing one of the Motor Propeller stops Fast compared to others.
I have also checked for any scratches or dents on it but couldn't find out
As it fell a few times while flying it must have damaged the motor
So ordered a New One on Ebay, Will check soon as i get it fixed here in India As its a huge custom risk to send it back
And While ordering its Mentioned as Pair of CW and CCW motors, but please help me out to find out which one i need among them.
The damaged one is the Rear Left Motor with a White Marks on its Head..
So which one should i get fixed to it CW or CCW ?
2017-9-8
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Maxximus
lvl.2
Flight distance : 10026 ft
India
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killers.jayanth Posted at 2017-9-8 03:00
I thought it was an Battery issue but today i confirmed that the issue is with the motor.
As i have seen after landing one of the Motor Propeller stops Fast compared to others.
I have also checked for any scratches or dents on it but couldn't find out

can you provide me link to the product on ebay which u bought
2017-9-8
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Jr 5542
lvl.3
United States
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I just had the same issue while flying yesterday. Landed right away and tried to duplicate the problem but this time it gave me error code. Cannot take off and battery Fw needs to be updated.
2017-9-9
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DJI Diana
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Flight distance : 2408 ft

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Jr 5542 Posted at 2017-9-9 08:29
I just had the same issue while flying yesterday. Landed right away and tried to duplicate the problem but this time it gave me error code. Cannot take off and battery Fw needs to be updated.

Have you upgraded the battery firmware? Is the issue resolved? If not, please provide a screenshot of the error code for better assistance.
2017-9-10
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DJI Diana
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Flight distance : 2408 ft

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killers.jayanth Posted at 2017-9-8 03:00
I thought it was an Battery issue but today i confirmed that the issue is with the motor.
As i have seen after landing one of the Motor Propeller stops Fast compared to others.
I have also checked for any scratches or dents on it but couldn't find out

I would recommend you export the data for analysis first, we'll do our best to find out the cause. Besides, it is not recommended to repair it by yourself, since it may void the warranty, please contact the retailer if the drone is faulty, see if they can help you to get it repaired.
2017-9-10
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killers.jayanth
lvl.2
Flight distance : 33419 ft
India
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Maxximus Posted at 2017-9-8 03:28
can you provide me link to the product on ebay which u bought

http://www.ebay.com/itm/2PCS-DJI ... :g:RR0AAOSwJclZnSPb
2017-9-10
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Jr 5542
lvl.3
United States
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DJI Diana Posted at 2017-9-10 00:34
Have you upgraded the battery firmware? Is the issue resolved? If not, please provide a screenshot of the error code for better assistance.

Update:
I did a FW refresh on that particular battery and tested it yesterday  and so far so good. My question is how come it asked for  another update when all my batteries had the latest FW?
2017-9-10
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killers.jayanth
lvl.2
Flight distance : 33419 ft
India
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DJI Diana Posted at 2017-9-10 00:36
I would recommend you export the data for analysis first, we'll do our best to find out the cause. Besides, it is not recommended to repair it by yourself, since it may void the warranty, please contact the retailer if the drone is faulty, see if they can help you to get it repaired.

I have uploaded the data on Airdata website on the email-timbureddy@gmail.com...But i couldnt understand the next step i should do...Help me outError Log on 11 Sep 2017
2017-9-10
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DJI Diana
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Jr 5542 Posted at 2017-9-10 12:37
Update:
I did a FW refresh on that particular battery and tested it yesterday  and so far so good. My question is how come it asked for  another update when all my batteries had the latest FW?

Nice to hear that. Every time when you connect the drone to the APP, the APP will check the firmware of the whole drone. When any modules' (Battery's) firmware version is inconsistent, an 'Inconsistent Firmware Found' prompt will pop up. No worries, it is normal, just upgrade it.
2017-9-10
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DJI Diana
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killers.jayanth Posted at 2017-9-10 21:42
I have uploaded the data on Airdata website on the email-timbureddy@gmail.com...But i couldnt understand the next step i should do...Help me outError Log on 11 Sep 2017

We can't download the data from Airdata website. Are you able to upload the data to the Dropbox, then create a link to share it, then provide me the link?
2017-9-10
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killers.jayanth
lvl.2
Flight distance : 33419 ft
India
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DJI Diana Posted at 2017-9-10 23:13
We can't download the data from Airdata website. Are you able to upload the data to the Dropbox, then create a link to share it, then provide me the link?

https://www.dropbox.com/s/zarfeo ... 1_10-39-38.DAT?dl=0

https://www.dropbox.com/s/eswo2h ... 0-35-35%5D.txt?dl=0

https://www.dropbox.com/s/0tv9dy6xwf18k2u/fatal.log?dl=0
2017-9-11
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DJI Diana
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killers.jayanth Posted at 2017-9-11 08:48
https://www.dropbox.com/s/zarfeokdcwsedko/DJI_ASSISTANT_EXPORT_FILE_2017-09-11_10-39-38.DAT?dl=0

https://www.dropbox.com/s/eswo2h308z6l9ud/DJIFlightRecord_2017-09-11_%5B10-35-35%5D.txt?dl=0

Thanks, I've forwarded them to our engineers for analysis, will keep you updated.
2017-9-11
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killers.jayanth
lvl.2
Flight distance : 33419 ft
India
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DJI Diana Posted at 2017-9-11 22:53
Thanks, I've forwarded them to our engineers for analysis, will keep you updated.

more home many days it gonna take...and will you inform me when its done??
2017-9-13
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DJI Diana
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killers.jayanth Posted at 2017-9-13 06:54
more home many days it gonna take...and will you inform me when its done??

Yes, I'll inform you when it is done. Our engineers are working on it now, please wait patiently.
2017-9-14
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killers.jayanth
lvl.2
Flight distance : 33419 ft
India
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DJI Diana Posted at 2017-9-14 22:38
Yes, I'll inform you when it is done. Our engineers are working on it now, please wait patiently.

Its been a Month, when will i get a response from your engineers
2017-9-27
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DJI Diana
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killers.jayanth Posted at 2017-9-27 03:53
Its been a Month, when will i get a response from your engineers

Sorry for the delay, Jayanth, do you have spare propellers? If yes, could you please replace the propellers, then test it again?   
2017-9-27
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killers.jayanth
lvl.2
Flight distance : 33419 ft
India
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DJI Diana Posted at 2017-9-27 05:17
Sorry for the delay, Jayanth, do you have spare propellers? If yes, could you please replace the propellers, then test it again?

Yes i have replaced all the Propellers also, but nothing seem to change
2017-9-29
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killers.jayanth
lvl.2
Flight distance : 33419 ft
India
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DJI Diana Posted at 2017-9-27 05:17
Sorry for the delay, Jayanth, do you have spare propellers? If yes, could you please replace the propellers, then test it again?

I Have Reinstalled the new propellers and everything seems to work fine,But there is an IMU error and when i try to calibrate got struck on 2/6...now what to do...I have tried to factory reset and all possible ways but nothing seems to work
2017-10-1
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kn8alpha_DJI
lvl.1
Flight distance : 30636 ft
United States
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killers.jayanth Posted at 2017-10-1 05:30
I Have Reinstalled the new propellers and everything seems to work fine,But there is an IMU error and when i try to calibrate got struck on 2/6...now what to do...I have tried to factory reset and all possible ways but nothing seems to work

tried IMU caibration without propellers?
2017-10-4
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killers.jayanth
lvl.2
Flight distance : 33419 ft
India
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kn8alpha_DJI Posted at 2017-10-4 00:26
tried IMU caibration without propellers?

Obviously Propellers are removed to Calibrate..
2017-10-4
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DJI Diana
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Flight distance : 2408 ft

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killers.jayanth Posted at 2017-10-1 05:30
I Have Reinstalled the new propellers and everything seems to work fine,But there is an IMU error and when i try to calibrate got struck on 2/6...now what to do...I have tried to factory reset and all possible ways but nothing seems to work

Sorry for the delay, I was on a holiday. Jayanth, you may need to send the drone in for diagnosis and repair. It will be more convenient for you to contact the retailer to help you send it in since you are in India.
2017-10-8
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