What should be done to the link before door closure?

Before the door closure of an aircraft, it is paramount to switch the link to airplane mode and disable Wi-Fi to comply with aviation regulations and ensure the safety and security of the flight. This procedure minimizes the risk of interference with the aircraft's communication and navigation systems.

When the link is set to airplane mode, it disables all wireless transmission functions, which is crucial during critical phases of flight, such as takeoff and landing. Disabling Wi-Fi specifically ensures that the device does not attempt to connect to any ground networks, which can inadvertently cause distractions to crew members and potentially lead to safety issues.

Thus, this practice aligns with the broader safety protocols mandated by aviation authorities to maintain a secure and controlled flight environment.