Mavic yaw drift

porlock · Mar 28, 2018

Today i maked factory reset, calibrate IMU on perfect leveled surface, next calibrate gimabl and next i went outside and drive to field, i mean literally field, nearest building was approx 500m and of cause i leave all metal things behind and then calibrate compas, it helps nothing.. is excatly the same, not even litle better.

sar104 · Mar 28, 2018

porlock said:
Today i maked factory reset, calibrate IMU on perfect leveled surface, next calibrate gimabl and next i went outside and drive to field, i mean literally field, nearest building was approx 500m and of cause i leave all metal things behind and then calibrate compas, it helps nothing.. is excatly the same, not even litle better.

In that case I would begin to suspect a bad z-axis rate gyro, since those data appear to be out of calibration.

porlock · Mar 28, 2018

Return it to Amazon ? Should I risk it to take another one ?

sar104 · Mar 28, 2018

porlock said:
Return it to Amazon ? Should I risk it to take another one ?

Your call. I've never had a yaw problem with any of the Mavics that I've flown, and I'm not aware that this is a widespread issue.

porlock · Mar 28, 2018

sar104 i have a update, it is not the drone.. it is the gimbal ..

Like you see it does not happens always, what do you think about it ?\

of cause i have Enable Synchronized Gimbal Pan Follow turned off

porlock · Mar 29, 2018

I will be thankful for any comments , what do You rhint about this issue ?

sar104 · Mar 29, 2018

porlock said:
sar104 i have a update, it is not the drone.. it is the gimbal ..

Like you see it does not happens always, what do you think about it ?\

of cause i have Enable Synchronized Gimbal Pan Follow turned off

Slight gimbal drift is not uncommon in that situation , but what was shown in the logs was actual aircraft rotation.

porlock · Mar 29, 2018

sar104 said:
Slight gimbal drift is not uncommon in that situation , but what was shown in the logs was actual aircraft rotation.

do you also have this gimbal drift ?

sar104 · Mar 29, 2018

porlock said:
do you also have this gimbal drift ?

I think I've seen it on occasion, but swinging it around manually indoors is not a very fair or representative test. As I said - in the flight logs that you posted there is actual heading drift being commanded by the FC, I think to attempt to resolve the yaw discrepancy - and that is a different problem.

porlock · Mar 29, 2018

Ok so i ask differently

do you ever see on your recording some yaw dift ? dosen't matter that caused by gimbal or drone rotating ?

Last time I get low approx 2m from ground and watch carefully drone, im almost sure that he is not rotating, only gimbal move.
Maybe this is 2 issues, on low atitute it use a sonar to hold still and only gimbal moves, and on higher it move by it self plus gimabl
Honestly, I'm disheartened, mavic is not a cheap toy, today i will upload logs from my last fligh (that one after software reset and recalibration) can you check that you still see that rotating in high atitute.

sar104 · Mar 29, 2018

porlock said:
Ok so i ask differently do you ever see on your recording some yaw dift ? dosen't matter that caused by gimbal or drone rotating ?

Last time I get low approx 2m from ground and watch carefully drone, im almost sure that he is not rotating, only gimbal move.
Maybe this is 2 issues, on low atitute it use a sonar to hold still and only gimbal moves, and on higher it move by it self plus gimabl
Honestly, I'm disheartened, mavic is not a cheap toy, today i will upload logs from my last fligh (that one after software reset and recalibration) can you check that you still see that rotating in high atitute.

No - I have not seen aircraft yaw drift of the kind that you are seeing, and I haven't looked at logs for gimbal drift because it hasn't been a problem for me. By all means post a new log and we can see if anything has changed.

Are you on the latest firmware? If not then you could also try updating. And if it really is a hardware problem then I think that it should be covered under warranty since you have the log data demonstrating the behavior.

porlock · Mar 29, 2018

Yes i have the latest firmware, after i make a factory reset i also reflash firmware over dj asistant 2 in mavic and controler.

Please find latest logs at this link
DJI_ASSISTANT_EXPORT_FILE_2018-03-29_23-30-14.DAT

porlock · Mar 30, 2018

Sar104 any update on latest logs ?

I already pack my Mavic and it is ready to send it back.

sar104 · Mar 30, 2018

porlock said:
Sar104 any update on latest logs ? I already pack my Mavic and it is ready to send it back.

I haven't had a chance to look at the last one yet - I'll get to that next.

MDR019 · Mar 31, 2018

one word, calibration and do all the calibrations, joysticks, compass and imu...

Anterialis · Mar 31, 2018

I've had a similar problem, but I think it is caused by the "synchronous follow" (?) option on the gimble. The camera "yaws" / pans even though the drone is hovering still. Are you sure your problem isn't caused by this? Try turning off the "synchronous follow" option in the gimble settings (?).

porlock · Mar 31, 2018

MDR019 said:
one word, calibration and do all the calibrations, joysticks, compass and imu...

6 words

, I already do this many times

porlock · Mar 31, 2018

synchronous follow turning off doesn't help in my case

Pcarlsen · Mar 31, 2018

Had this happen to me also. I went ahead and calibrated the compass and the controller sticks, which sorted it out. Only issue with doing both at once is I don't know which one alleviated the problem

radmanzulu · Mar 31, 2018

Interested to see this because I also feel that my Mavic also yaws to the left despite recalibrating everything. I assumed that maybe I was holding the stick over without realizing it. I have calibrated the controller so that it doesn’t react to the first stick deviation.