Hello.

Since the Spark flies shakily (only up/down), and sometimes will not rise, or palm start will result in landing/falling down, I was looking at the IMU-Values (before/after calibration).

If the drone is sitting somewehre the Accelaration sensors for X+Y show nearly 0, as expected. The Z-Axis however shows -1. What does that mean? Am I correct in the assumption, that the IMU thinks it's currently sinking, even thou it's just sitting somewhere (props off)?

I did try calibration trough Assistant 2, but it's stuck @95%. The screen howevers shows the values I am concerned about (see picture).


Does this indicate a damaged IMU? Any suggestions?

UPDATE:

Calibration trough Smartphone-App sucessful. Still flies shaky (up/down), and still has issues with palm start as described above. Still wonder if the Z-Axis should show value as described and seen in picture...

Hi there. Thank you for reaching out and we're sorry for the trouble. Since you already tried to calibrate the IMU multiple times and also perform the calibration via DJI Assistant 2, I'm afraid that you may consider sending in the unit for proper diagnostics. You may contact our support team to start up a ticket at https://www.dji.com/support . Thank you for your understanding.