For deveopment testing, I try to control M600 over onboard computer and monitor its movement with DJI Assistant2 Simulator. I am able to take data from Simulator to onboard computer but when I give takeoff command propellers move for 0.2 second and stop immediately and do not perform takeoff operation. API control is enabled from DJI Assistant, APP ID and key is correct because drone is activated succesfully. Safe flight obtions also enabled. I aware that, there is a firmware update on DJI Assistan2, I will try it again completing firmware update but beside that are there any ideas about this case.
Simulator video is in link below. Thanks in advance

https://youtu.be/jvFvjCNwtVw

For deveopment testing, I try to control M600 over onboard computer and monitor its movement with DJI Assistant2 Simulator. I am able to take data from Simulator to onboard computer but when I give takeoff command propellers move for 0.2 second and stop immediately and do not perform takeoff operation. API control is enabled from DJI Assistant, APP ID and key is correct because drone is activated succesfully. Safe flight obtions also enabled. I aware that, there is a firmware update on DJI Assistan2, I will try it again completing firmware update but beside that are there any ideas about this case.
Simulator video is in link below. Thanks in advance

https://youtu.be/jvFvjCNwtVw