Why can the "Apple" mobile phone still receive text messages in airplane mode?

If WIFI is turned on at the same time as the airplane mode is turned on, then the information is acceptable.

The practical function of "flight mode" of mobile phone;

1、? Quickly re-search for network signals. When the mobile phone encounters network failure or disconnection, it can turn on "flight mode". After a while, turn off "Flight Mode". This process is equivalent to restarting the phone and checking the network connection immediately.

2、? Turn it on when sleeping to reduce radiation. Without turning off the mobile phone and turning on the "flight mode", the radiation of the mobile phone can be immediately reduced to a very low level.

3. Save electricity. Most of the power of the mobile phone is consumed by the signal, so when the "flight mode" is turned on, the mobile phone will stop receiving network data and communication signals, which is more energy-saving than turning on the power-saving mode.

4. Save charging time. When the mobile phone is charging, if you want to charge it faster, you can turn on the "flight mode". After the mobile phone stops searching for the received signal, it will speed up the charging process and save charging time.

5、? Prevent unnecessary charges. Although the domestic roaming fee has been cancelled, international roaming is still there. Therefore, if you don't buy a local flow card when traveling abroad, it's best to turn on the "flight mode" first and then connect to WiFi to avoid high roaming charges.

6. I don't want to be disturbed. Because when you turn on "airplane mode", all networks will be automatically disconnected, but you can also turn on WiFi manually, so that surfing the Internet and playing games will not be disturbed by your mobile phone.

7. There is no need to restart after the arrears are recharged. After paying the phone bill, you don't need to turn it off and turn it on again. You just need to switch it to "airplane mode" and then switch it back, and you can connect to the Internet.

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