Motors arming after turning off remote controller

ArduCopter Copter 4.0
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1

Hi guys,

I’m running into a problem that I didn’t notice before.

When I turn off the radio controller but the drone stays on, the motors suddenly start spinning. What could be causing this behavior? Do you think this is something that could be adjusted in the parameters?

2

Does your radio control have failsafe function?
If its have turn it off
Also proving .bin log file will help

3

Set LOG_DISARMED and provide a .bin log