I can't accept some short messages after the mobile phone card was changed from Apple to Samsung.

People who can't send you messages also use Apple phones, right? When you use an Apple phone, the phone number is bound to the Apple ID. if

In the SMS settings, open iMessages (a free SMS dedicated to Apple, similar to WeChat with traffic) to receive SMS.

Fang is also an Apple mobile phone user. When you open imessage, the short message will be automatically converted into imessage and sent. If you switch to Android,

Machine, then your friend will send you a short message, which will be sent to the bound Apple ID, even if the Apple ID is no longer used.

Solution: Insert the SIM card back into Apple's mobile phone, go to settings-information-and then turn off iMessage with the slide switch.