Joke Collection Website - Public benefit messages - Why does iphone 13 display blue when sending messages on the phone's black screen?
Why does iphone 13 display blue when sending messages on the phone's black screen?
Blue indicates that the message sent out is sent through iMessage, which does not generate SMS charges and takes traffic. In iMessage mode, if the message fails to be sent, it will be automatically sent by SMS. Blue SMS is a service provided by Apple for iOS devices to send information through the network for free.
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