The captain can also bring a mobile phone, as long as it is not used during the flight. No matter the captain or passengers, they should turn off their mobile phones or be in flight mode during the take-off and landing and the whole flight to ensure the safety of the whole flight.

During the flight, when the captain discovers that there is electronic interference and suspects that the interference comes from the portable electronic equipment used by the crew on board, the captain and his authorized personnel shall ask him to turn off these portable electronic equipment. If the circumstances are serious, he shall hand it over to the ground public security organ for legal disposal after the plane lands.