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Double card can't receive SMS

Mobile phone setting problems, SMS center problems, etc.

1, mobile phone setting problem: mobile phone setting error may cause mobile phone card 1 to receive short messages, but card 2 can receive them. The solution to this problem is to check the mobile phone settings to ensure that the SMS reception settings are correct.

2. Short message center problem: There may be a fault or error in the short message center, which may cause the card 1 to be unable to receive short messages, but the card 2 can receive them. The solution to this problem is to contact the customer service department of the mobile phone operator, ask if there is any problem in the SMS center and ask for help.