Can't I use my cell phone on the plane?

　　Because after the mobile phone is turned on, the mobile phone frequency band signal will interfere with flight communications and navigation safety. Nowadays, civil aviation relies heavily on computer automation, so it is particularly important to eliminate interference from non-human factors. Therefore, passengers are not allowed to use mobile phones in the cabin. Devices such as IPAD (non-3G), laptops, MP4, and PSP can be used during level flight, but do not enable wireless Internet access.

　　Article 88 of the Civil Aviation Law of the People's Republic of China imposes restrictions on the use of portable electronic devices by passengers on board the aircraft, and Article 200 stipulates that violators will be subject to public security management penalties and even criminal penalties. Various airlines have also included in their in-flight broadcasts information requiring passengers to turn off the power of portable electronic devices they carry with them on the aircraft. Electronic devices prohibited from use on aircraft include mobile phones, pagers, game console remote controls, amateur radio receivers, laptop computers, CD players, etc.

　　Mobile phone "airplane mode" is not allowed to be used

　　Many passengers don’t want to turn off their phones on the plane, so they activate airplane mode.” This is generally not allowed on airplanes. Because airplane mode is only used when you want to use certain functions on your phone, such as calculators, stopwatches, and clocks, but do not want to be interfered by the outside world. The anti-interference state enabled at this time is not a state where the phone cuts off the signal. From a scientific point of view, flight mode cannot achieve zero signal 100%." This means that the emergence of the concept of "airplane mode" has nothing to do with smartphones, let alone being able to be used on airplanes. So on the plane, you still need to turn off your phone the whole time.