Unable to change FlightMode when armed

@cherrypie wrote:

Hi there,

I have a Pixhawk 2.1 with a here GPS.
My problem is that I cannot change the flightmode to AltHold or Loiter when the Copter is armed.
When it’s disarmed it works fine. Taking off in Stabilize works, but i cannot switch to another flight mode.
I always get the failure message “Unable to change flight mode” in Mission Planner.

128 01.01.1980 01-00-00.bin (256 KB)

In the log it says
EV_FLIGHT_MODE-2 (When i switch to ALTHold for instance)
and
EV: Data_EKF_ALT_RESET
and
EV: DATA_ARMED
all at the same time.

Googling the error codes did not help me out.

Does anyone know how to work with this issue?

Thanks,
Walter

EV_Data_Armed.png1920×1157 102 KB

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