Got a trouble with my Pixhawk clone. When I press safety switch px4io is gone - all IO LEDs is turn off and not light until switch still pressed.When I release a switch then IO PWR LED is light on, IO B/E LED is steady (it mean error) IO ACT LED is flashing. Link with MP via USB is break after I release button. I try to connect to NSH via Serial4/5 but NSH is gone too and not respond after I pressed a button. I try with Arducopter and ArduPlane firmware - result the same.
What do you think about this case? May be px4io chip is bad?