Arming denied! Manual Control Lost

Hi. I’m using QGC to take off my real px4. i got a trouble that i couldn’t arm the drone. The error is shown in the picture.
Could anyone help me to solve this problem? I’m using 1.13.0 firmware. Thanks a lot

Which mode are you trying to arm in? And check the params:

@JulianOes I’m trying to arm in stablized mode, and i dont have RC so i dont configure it in QGC. The prearm always returns error. I have changed the params you said but it did not work

You can’t arm in stabilized mode without RC, as far as I’m aware. Stabilized needs a pilot in control, and without RC or manual control via MAVLink (e.g. a joystick in QGC) that’s just not the case.