IMU Calibration warning everytime.

[jftman]

My Mavic 2 Pro throws Calibrate IMU in the Go 4 App everyTime I power it up. I do the calibration many times and it says completed and successfully calibrated.
Power it off, power it on, same thing, shows Calibrate IMU.
I DID vision sensors calibration on DJI assistant 2, and calibrated the compass, though there was no warning.
I refreshed the firmware in Assist 2.
The motors will start, there are no other errors.

I had to replace the YAW ribbon cable to the motor was cracked. I pulled the coil and replaced it, keeping the magnet ‘bell’.

I am wondering if a neutral orientation of the YAW ribbon is part of the motor build? Because I did not line up the connector to any single point.
I put the coil assembly close to the magnet and it sucked itself in.
There are no stops like the Roll motor, the ribbon spins 360 degrees.

I believe this correlation is solved by Python calibrating travel and centering the three axis. This is done and the gimbal dance is all good.
Going to downgrade firmware then check for change then upgrade....

Prolly needs a board / component changed out.

Is it possible that the ribbon must be situated at the center point that lines up with the camera over the nose of the drone?

The Go 4 app shows Accelerometer DATA ERROR.

AnyOne getting a consistent Calibrate IMU warning even when the calibration has been done successfully?

 

[Cafguy]

You either have a bad IMU or a bunch of metal around you when you calibrate the Drone.
Do not calibrate your drone indoors.

 

[jftman]

You either have a bad IMU or a bunch of metal around you when you calibrate the Drone.
Do not calibrate your drone indoors.

I hope going outdoors makes a change. I had the drone on my computer for hours. Between dji assistant 2 and running Python, long time. I did go out this morning and tried on the deck. No joy yet! I'll try some more. I agree bcuz the compass needed calibration a bunch of times. Duh.

 

[jftman]

I installed an old version of Asst 2 and enabled debugging and dev tools.
I'd be interested if a data error in MIU can be cleared. That is if it is not hardware?

 

[Capt KO]

I've always done my imu calibration on my dining room table, never had a failure yet. Probably done dozen times in my life of many drones. Only ever needed when flights got squirrelly. Good luck

 

[Meta4]

You either have a bad IMU or a bunch of metal around you when you calibrate the Drone.
Do not calibrate your drone indoors.

Metal (even iron or steel) makes no difference to the IMU.
You are thinking of the compass.
There's no problem recalibrating the IMU indoors.

 

[jftman]

Does IMU have a flying function or only a camera function? Must be important bcuz there is a backup

 

[Starz]

IMU doesn’t control the camera.
Reading material.

UAV Navigation in Depth: What is an IMU and what is it used for? | UAV Navigation

An Inertial Measurement Unit (IMU) is a device capable of estimating and reporting specific dynamic states such as an

www.uavnavigation.com

 

[Cafguy]

If you went outside and calibrated and are still getting the message, Your next move is..... believe it or not....Make sure your SD card is compatable and has no issues If that wont do it, reinstall all firmware. If no joy after all of this REPLACE THE IMU.

 

[jftman]

I have ordered an IMU module
I also tried banging on the thing.

 

[AlexRomanov]

In my experience, this is closely related to the environment where you power on the drone. I have a favorite bridge where I often flew, but after they installed new railings made of stretched steel cables, my Mavic 3 requires calibration if I get closer than a meter to them. A simple way to check is to open the compass app on your phone and walk around. If the needle starts shifting, you’re near a strong field source.

 

[jftman]

IMU 2 is stuck at 16.5

 

[jftman]

IMU received but I cleared the IMU data error on ACC 0.
I removed the gimbal and tapped on the IMU unit, and pushed it around using the screw heads.
Restarted and it is NORMAL.