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How to cancel flash messages on iPhone? It’s very troublesome. I don’t like this.

Flash messages are similar to text messages. If you want to cancel, you have to remove the SIM card. Terminal software cannot intercept flash messages.

Flash messages are SMS services, namely lightning SMS or level 0 SMS. Send a flash message and display it directly on the mobile phone screen. It has the characteristics of forcing the recipient to read it. At the same time, the mobile phone user needs to click to confirm before performing other operations. The terminal software cannot intercept the flash message.

Flash messages do not display operator codes, are not blocked by interception software, and arrive efficiently. Flash messages are usually used for operator business reminders, industry notifications, extreme weather, natural disaster reminders, and marketing type information. transfer.

Extended information

Flash Message is an information communication product similar to SMS distributed through the formal channels of the three major operators. Flash Message is sent to the mobile phone, and the pop-up window can be read directly without retaining the information. Mobile phones do not create spam for users.

The flash message service is billed on a per-item basis, the price is lower than SMS, and users receive it free of charge. Flash messages cannot be replied to directly. Due to the network or terminal where the user is located, the user's mobile phone may not be able to receive or display the pop-up message after receiving it. However, with the popularity of smart terminals, this situation is rare. The response returned by the interface can be message to determine whether it needs to be resent to the user.

Due to the strict management of flash messages by operators, before sending a flash message, the content copy must be submitted to the operator for review one day in advance, and it can only be sent after the operator approves it.

Reference: Baidu Encyclopedia - Flash Letter