Problem with yaw (quadcopter)

Hi,

When arm my quad and take off, yaw stick not respond and it depends if turn right or left lose height or have more power.
I checked the examples for AHRS. Roll and pitch are a stable values but yaw come down.
I analyzed logs and RUD channel input and Ch4 output are working OK.

Thanks in advance.

Andres.

Anybody knows how can I resolve this problem?
Main problem is yaw control don’t work. Maybe for calibration problem or wrong settings (PID) .
How can I do a hard reset for Navio2 board? Reinstall Navio2 image is enough? Or some parameters save in an internal memory?
Thanks.

You can reset yaw parameters in GCS. For example in MP there’s a Reset parameters button in Full paramater list that is available after Advanced option has been selected.