System error warning

[Smecky]

Just had a flight after updating the mav and controller and all three batteries. Flew out around 500m at 140ft in height. I was looking at the mav and it was going up and down about a foot. Looked at the screen and seen the numbers changing about 3ft up and down.
Next it just dropped about 50ft I had to raise it then brought it straight back, it was like flying in atti mode.
Then I had this system error warning on controller.
Switched it off and back on again I said maximum height reached. 880ft.
What’s going on. Any input would be great.

 

[CanadaDrone]

If you post the flight logs you can probably get the help you're after.

 

[Smecky]

I have just deleted and reinstalled the app can I still get them back. Thanks

 

[BD0G]

Here is the link to the process if you would like to try.
DJI Flight Log Viewer | Phantom Help

 

[Smecky]

Seems what I had done is performed a sensor calibration with the old assistant software. Looked at my imu sensors last night and they were all over the place. One even yellow.
Downloaded the latest software, did the calibration and cold imu.
All good flew one battery this morning but far too cold and windy in Manchester uk. -3 today.