i have a brand new APM 2.5 board with Quad 2.9.1 installed and no matter what i do - all of the sensor calibrations i tried are failing.
usually ill get something lik: Calinration faile (-2.3 0.5 1.4 1.0 1.0 1.0).
Is this board faulty ?
is it safe to fly if the calibration fails ?
when i use the "level" function the artificail horizon display is operating perfectly well.
Please express your thoughts.