Why can I still receive some software prompts when I turn on the flight mode? Isn't flight mode equivalent to turning off the phone? What is this?

The flight mode is to shield the mobile phone signal from receiving and sending signals. It's not surprising that your iphne4 can receive the information sent by the software, because the United States has installed a money deduction system on the iphone, and the United States monitors our China, so the phone will be bugged, but it won't eavesdrop on us ordinary people. You were just cheated by America, which is better. Not long ago, the news revealed that the United States was eavesdropping on its allies, and China was already under their network. A suggestion: I suggest you really turn it off, but if you really need to turn it on, you'd better take out your mobile phone card.