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Gimbal Not Respond to Remote Controller (pitch up/down,calibrate, Reset Setting Timeout) MAVIC 2 PRO

gantarone

gantarone

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Age
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Location
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HI All,
After Hard Landing (due to the sensor seeing negative altitude)VERY DANGEROUS!!!!!
Gimbal which works OK during Startup (X Y Z movement, stabilization works correctly) but does not work with the Remote Control when I try to move Camera UP/DOWN or LEFT/RIGH

When I try to reset the gimbal from the Remote Control I get a message "timeout error" after a few seconds

Auto calibration from RC It doesn't seem to work, the gimbal doesn't move.

If I try to set the Gimbal on "FPV" after a while it returns to "Follow"

1-I disassembled all the mavic and reassembled (Still the same)
2- Relink RC (Still the same)
3-Gimbal calibration from GitHub - o-gs/dji-firmware-tools: Tools for handling firmwares of DJI products, with focus on quadcopters. using Python trough USB (Works but not through Remote Control)
4-i tried to downgrade firmware (Still the same)


I have no errors on the application (DJI GO 4), it would seem that the command (example Reset Gimbal)starts from the remote control but it does not reach the motherboard of the gimbal (CAN BUS)

maybe it is the flat cable from the motherboard to the gimbal motherboard?
Anyone know the pin out? They are 42 pins, maybe I could test them with the tester

Some idea? Has anyone had the same experience as me?Any advice is welcome!!!
 

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gantarone said:
HI All,
After Hard Landing (due to the sensor seeing negative altitude)VERY DANGEROUS!!!!!
Gimbal which works OK during Startup (X Y Z movement, stabilization works correctly) but does not work with the Remote Control when I try to move Camera UP/DOWN or LEFT/RIGH

When I try to reset the gimbal from the Remote Control I get a message "timeout error" after a few seconds

Auto calibration from RC It doesn't seem to work, the gimbal doesn't move.

If I try to set the Gimbal on "FPV" after a while it returns to "Follow"

1-I disassembled all the mavic and reassembled (Still the same)
2- Relink RC (Still the same)
3-Gimbal calibration from GitHub - o-gs/dji-firmware-tools: Tools for handling firmwares of DJI products, with focus on quadcopters. using Python trough USB (Works but not through Remote Control)
4-i tried to downgrade firmware (Still the same)


I have no errors on the application (DJI GO 4), it would seem that the command (example Reset Gimbal)starts from the remote control but it does not reach the motherboard of the gimbal (CAN BUS)

maybe it is the flat cable from the motherboard to the gimbal motherboard?
Anyone know the pin out? They are 42 pins, maybe I could test them with the tester

Some idea? Has anyone had the same experience as me?Any advice is welcome!!!
Click to expand...
I would try doing the calibration from a PC before looking into any hardware issues. Also, a guy here had a somewhat similar issue fixed by updating the device being used so maybe try that too. Deleting and reinstalling the DJI Go 4 app would also be a possibility.
 
gantarone said:
HI All,
After Hard Landing (due to the sensor seeing negative altitude)VERY DANGEROUS!!!!!
Gimbal which works OK during Startup (X Y Z movement, stabilization works correctly) but does not work with the Remote Control when I try to move Camera UP/DOWN or LEFT/RIGH

When I try to reset the gimbal from the Remote Control I get a message "timeout error" after a few seconds

Auto calibration from RC It doesn't seem to work, the gimbal doesn't move.

If I try to set the Gimbal on "FPV" after a while it returns to "Follow"

1-I disassembled all the mavic and reassembled (Still the same)
2- Relink RC (Still the same)
3-Gimbal calibration from GitHub - o-gs/dji-firmware-tools: Tools for handling firmwares of DJI products, with focus on quadcopters. using Python trough USB (Works but not through Remote Control)
4-i tried to downgrade firmware (Still the same)


I have no errors on the application (DJI GO 4), it would seem that the command (example Reset Gimbal)starts from the remote control but it does not reach the motherboard of the gimbal (CAN BUS)

maybe it is the flat cable from the motherboard to the gimbal motherboard?
Anyone know the pin out? They are 42 pins, maybe I could test them with the tester

Some idea? Has anyone had the same experience as me?Any advice is welcome!!!
Click to expand...
A hard landing is unrelated to the sensor reading a negative altitude. That's a barometric measurement, and is not related to the auto landing function.
 
BSauce955 said:
I would try doing the calibration from a PC before looking into any hardware issues. Also, a guy here had a somewhat similar issue fixed by updating the device being used so maybe try that too. Deleting and reinstalling the DJI Go 4 app would also be a possibility.
Click to expand...
Thanks for your helps,
1- I tried again to do the calibrations, I don't have any kind of hardware error (Still the same).
2-I tried to Downgrade the remote control and Mavic, also tried the upgrade (Still the same).
3-deleted the DJI GO4 application reinstalled and deleted the internal application folders from Itunes (Still the same).
 
sar104 said:
A hard landing is unrelated to the sensor reading a negative altitude. That's a barometric measurement, and is not related to the auto landing function.
Click to expand...
Maybe but while he was at 40 meters and descending at full speed he touched the ground and rose 11 meters ... (spring effect)
At the moment what interests me is repairing my Mavic.



Anyway below there is a table of the last flight with Hard Landing

Gimbal Roll Reached Movement Limit

Flight time: 11m 28s
Altitude: -8.2 m
Home Distance: 20 m)


Flight time		Flight
mode		GPS
Sat		Baro.
Alt.		Sonar
Alt.		SpeedHome
Dist		Bat%VoltsCell 1Cell 2Cell 3Cell 4Devi-
ation		Radio
Signal
Notification
11m 06.2sSport160.3m7.8m0.1m/s19.6m55%15.07V3.766V3.772V3.768V3.761V0.005V100%
11m 06.6sSport160.4m7.7m0m/s19.6m55%15.07V3.766V3.772V3.768V3.761V0.005V100%
11m 07.0sSport160.5m7.6m0m/s19.5m55%15.07V3.805V3.807V3.812V3.801V0.004V100%
11m 07.4sSport160.4m7.5m0m/s19.5m55%15.07V3.805V3.807V3.812V3.801V0.004V100%
11m 07.8sSport160.4m7.4m0m/s19.6m55%15.07V3.805V3.807V3.812V3.801V0.004V100%
11m 08.2sSport160.3m7.3m0m/s19.6m55%15.22V3.803V3.804V3.809V3.799V0.004V100%
11m 08.6sSport160.3m7.3m0m/s19.6m55%15.22V3.803V3.804V3.809V3.799V0.004V100%
11m 09.0sSport160.3m7.3m0m/s19.7m55%15.22V3.803V3.804V3.809V3.799V0.004V100%
11m 09.4sSport160.4m7.5m0m/s19.7m55%15.22V3.805V3.805V3.806V3.786V0.019V100%
11m 09.8sSport160.9m8.0m0m/s19.8m55%15.22V3.805V3.805V3.806V3.786V0.019V100%
11m 10.2sSport161.5m8.6m0m/s19.8m55%15.24V3.802V3.805V3.820V3.813V0.003V100%
11m 10.6sSport161.9m9.0m0m/s19.8m55%15.24V3.802V3.805V3.820V3.813V0.003V100%
11m 11.0sSport162.3m9.4m0m/s19.8m55%15.24V3.802V3.805V3.820V3.813V0.003V100%
11m 11.4sSport162.7m9.5m0m/s19.8m55%15.20V3.801V3.801V3.805V3.796V0.005V100%
11m 11.8sSport163.2m9.5m0m/s19.8m55%15.20V3.801V3.801V3.805V3.796V0.005V100%
11m 12.2sSport164.0m9.5m0m/s19.8m55%15.20V3.759V3.762V3.772V3.770V0.003V100%
11m 12.6sSport165.0m9.5m0m/s19.9m55%15.20V3.759V3.762V3.772V3.770V0.003V100%
11m 13.0sSport166.0m9.5m0m/s19.9m55%15.20V3.759V3.762V3.772V3.770V0.003V100%
11m 13.4sSport166.7m9.5m0m/s19.9m55%15.21V3.796V3.795V3.806V3.808V0.001V100%
11m 13.8sSport166.8m9.5m0m/s19.9m55%15.21V3.796V3.795V3.806V3.808V0.001V100%
11m 14.2sSport166.8m9.5m0m/s19.9m55%15.21V3.796V3.795V3.806V3.808V0.001V100%
11m 14.6sSport166.8m9.5m0m/s20.0m55%15.21V3.804V3.803V3.808V3.797V0.006V100%
11m 15.0sSport166.7m9.5m0m/s20.0m55%15.21V3.804V3.803V3.808V3.797V0.006V100%
11m 15.4sSport166.7m9.5m0m/s20.0m55%15.20V3.801V3.802V3.807V3.797V0.004V100%
11m 15.8sSport166.7m9.5m0m/s20.0m55%15.20V3.801V3.802V3.807V3.797V0.004V100%
11m 16.2sSport166.7m9.5m0m/s20.0m55%15.20V3.801V3.802V3.807V3.797V0.004V100%
11m 16.6sSport166.7m9.5m0m/s20.0m55%15.21V3.801V3.802V3.807V3.797V0.004V100%
11m 17.0sSport166.8m9.5m0m/s20.0m55%15.21V3.801V3.802V3.807V3.797V0.004V100%
11m 17.4sSport166.8m9.5m0m/s20.0m55%15.21V3.803V3.803V3.808V3.799V0.004V100%
11m 17.8sSport166.8m9.5m0m/s20.1m55%15.21V3.803V3.803V3.808V3.799V0.004V100%
11m 18.2sSport166.8m9.5m0m/s20.0m55%15.21V3.803V3.803V3.808V3.799V0.004V100%
11m 18.6sSport166.8m9.5m0m/s20.0m55%15.21V3.803V3.804V3.808V3.799V0.004V100%
11m 19.0sSport166.9m9.5m0m/s20.0m55%15.21V3.803V3.804V3.808V3.799V0.004V100%
11m 19.4sSport167.6m9.5m0m/s19.9m55%15.21V3.803V3.804V3.808V3.799V0.004V100%
11m 19.8sSport168.8m9.5m0m/s19.9m55%14.87V3.726V3.722V3.720V3.706V0.014V100%
11m 20.2sSport169.5m9.5m0.1m/s19.8m55%14.87V3.726V3.722V3.720V3.706V0.014V100%
11m 20.6sSport169.5m9.5m0m/s19.8m54%15.28V3.808V3.807V3.810V3.799V0.008V100%
11m 21.0sSport169.5m9.5m0m/s19.8m54%15.28V3.808V3.807V3.810V3.799V0.008V100%
11m 21.4sSport169.5m9.5m0m/s19.8m54%15.28V3.808V3.807V3.810V3.799V0.008V100%
11m 21.8sSport169.6m9.5m0m/s19.7m54%15.20V3.800V3.801V3.805V3.795V0.005V100%
11m 22.2sSport169.6m9.5m0m/s19.7m54%15.20V3.800V3.801V3.805V3.795V0.005V100%
11m 22.6sSport169.6m9.5m0m/s19.7m54%15.20V3.800V3.801V3.805V3.795V0.005V100%
11m 23.0sSport169.6m9.5m0m/s19.7m54%15.20V3.800V3.801V3.805V3.795V0.005V100%
11m 23.4sSport169.7m9.5m0m/s19.7m54%15.20V3.800V3.801V3.805V3.795V0.005V100%
11m 23.8sSport169.6m9.5m0m/s19.8m54%15.20V3.798V3.799V3.804V3.795V0.003V100%
11m 24.2sSport169.6m9.5m0m/s19.8m54%15.20V3.798V3.799V3.804V3.795V0.003V100%
11m 24.6sSport169.6m9.5m0m/s19.8m54%15.20V3.798V3.799V3.804V3.795V0.003V100%
11m 25.0sSport169.6m9.5m0m/s19.8m54%15.20V3.798V3.799V3.804V3.795V0.003V100%
11m 25.4sSport169.2m9.5m0m/s19.8m54%15.20V3.798V3.799V3.804V3.795V0.003V100%
11m 25.8sSport167.8m9.5m0m/s19.8m54%15.37V3.848V3.848V3.856V3.849V0100%
11m 26.2sSport165.6m9.5m0.1m/s19.8m54%15.37V3.848V3.848V3.856V3.849V0100%
11m 26.6sSport162.9m9.5m0m/s19.8m54%15.37V3.848V3.848V3.856V3.849V0100%
11m 27.0sSport160m9.5m0m/s19.8m54%15.38V3.845V3.847V3.849V3.841V0.004V100%
11m 27.4sSport16-3.5m2.8m0m/s19.8m54%15.38V3.845V3.847V3.849V3.841V0.004V100%
11m 27.8sSport16-6.7mN/A0.5m/s19.8m54%15.38V3.780V3.771V3.761V3.741V0.020V100%
G11m 28.0sSport16-8.2mN/A0m/s19.7m54%15.38V3.780V3.771V3.761V3.741V0.020V100%Gimbal Roll Reached Movement LimitView
11m 28.4sSport10-10.4m1.2m0.1m/s19.7m54%15.38V3.780V3.771V3.761V3.741V0.020V100%
11m 28.8sSport9-11.2m2.7m2.0m/s22.2m54%14.58V3.658V3.642V3.648V3.633V0.009V100%
11m 29.2sSport10-11.2m4.8m0.7m/s21.2m54%14.58V3.658V3.642V3.648V3.633V0.009V100%
11m 29.6sSport10-10.9m4.7m2.7m/s17.9m54%14.58V3.658V3.642V3.648V3.633V0.009V100%
11m 30.0sSport14-5.0m4.7m0.6m/s15.9m54%14.58V3.771V3.780V3.789V3.742V0.029V100%
11m 30.4sSport16-1.7m4.7m0.2m/s16.8m54%14.58V3.771V3.780V3.789V3.742V0.029V100%
11m 30.8sSport160.7m4.7m1.3m/s18.5m54%14.58V3.771V3.780V3.789V3.742V0.029V100%
11m 31.2sSport162.8m4.7m1.7m/s19.8m54%15.16V3.787V3.790V3.795V3.787V0100%
11m 31.6sSport164.6m4.7m1.3m/s20.7m54%15.16V3.787V3.790V3.795V3.787V0100%
11m 32.0sSport166.7m4.7m0.6m/s21.2m54%15.16V3.809V3.811V3.815V3.807V0.002V100%
11m 32.4sSport169.1m4.7m0.6m/s21.0m54%15.16V3.809V3.811V3.815V3.807V0.002V100%
11m 32.8sSport1610.5m4.7m0.6m/s20.6m54%15.16V3.809V3.811V3.815V3.807V0.002V100%
11m 33.2sSport1610.8m4.7m0.8m/s20.3m53%15.29V3.827V3.823V3.826V3.816V0.007V100%
11m 33.6sSport1611.4m4.7m0.8m/s19.9m53%15.29V3.827V3.823V3.826V3.816V0.007V100%
 
Last edited:
gantarone said:
Maybe but while he was at 40 meters and descending at full speed he touched the ground and rose 11 meters ... (spring effect)
At the moment what interests me is repairing my Mavic.

Anyway below there is a table of the last flight with Hard Landing
Click to expand...

This was an autolanding?
 
Have you calibrated the remote, including the gimble wheel? That would have been my first thought. Hope you solve the problem.
 
Capt KO said:
Have you calibrated the remote, including the gimble wheel? That would have been my first thought. Hope you solve the problem.
Click to expand...
yes I calibrated the remote control, while the calibration of the Gibal I did it with the commands via python.
The remote control does not work the calibration, when the launch nothing happens
 
  • Sad
Reactions: Capt KO
if you download CsvView CsvView Downloads
and use it to open the appropriate txt flight log you can, in the CsvView window, click on "File" in the upper left corner and select "export csv".
When the csv is created open it and search for, I think, "OSD.sWaveHeight [m]", column BG or 58.
I think that is the VPS height
 
PhiliusFoggg said:
if you download CsvView CsvView Downloads
and use it to open the appropriate txt flight log you can, in the CsvView window, click on "File" in the upper left corner and select "export csv".
When the csv is created open it and search for, I think, "OSD.sWaveHeight [m]", column BG or 58.
I think that is the VPS height
Click to expand...
I just have to ask ... what do you gain by using CsvView for txt conversion only, & skip the rest of the nifty functionality there?

I mean ... after opened the txt in CsvView you are only 3 clicks away from displaying the data you want to investigate ... like here below, 25sec of the OSD:sWaveHeight brought up in a simple graph easy to overview for possible anomalies over time and just mouse over the chart & read off the numerical data point in the legend below.

1633781458717.png

Showing exactly the same out of a csv file opened & column organized in excel shows the same as above ... but in 240 rows! Really time consuming to eyeball everything, scrolling up & down ... & it gets even worse if bringing in another data field located far away column wise to compare towards each other.

csv.jpg
 
In general I find it easier to first find the appropriate data column in the csv.
I have my own set of "makes sense to me column titles" saved and just copy and paste that set of titles beneath the 'proper' titles.
Obviously that gives me the proper title of the data column and from that I know which of the drop down menus to open in the graphical option.
If I go straight to the graphical options I often end up having to plough through the drop down menus until I find the entry I want.

Certainly if I could remember where a specific data stream can be found in those drop down menus it would be quicker to go click, click, click etc. but where the data is in those drop done menus does not seem to 'click' with me.

Aside from that I use my version of a program, the original of which was posted on here some time ago ( I don't remember by whom), which reads the csv's (output by the appropriate TXTlogToCSVtool.exe ) and picks data from those csv's to create a flight log history of all my flights with all my DJI drones or at least those flights where I still have the .txt flight log, I've lost a few and or wiped a few by mistake.
 
Last edited by a moderator:
PhiliusFoggg said:
...Certainly if I could remember where a specific data stream can be found in those drop down menus it would be quicker to go click, click, click...
Click to expand...
Just "unfold" all signal categories & fill your entire screen with only that ... take a screen shot of it, print & nail it on the wall beside you computer. Helped me tremendously in my early days of log investigation ... easy to glance over in order to find the signal I was after.
 
That might work but I would need to add my 'translation' of the proper titles, some of proper titles do not make sense to me, e.g. wave height being the VPS height. (Obviously that one has now 'stuck' ).
 
Just use a ballpoint pen directly on the printed picture 😁
 
SOLVED !!!! the ribbon cable from the motherboard to the Motherboard Gimbal was broken !!!!
It was like I thought the TX wire (CAN or SBUS) was broken,so the command transmission did not send to the Gimbal and I had on the RC "timeout" message
15 $ and everything is back to normal ...... I hope this serves someone and avoids expensive repairs ...
Thank All of YOU!!!!!

below Photo of the cable!!!!
 

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