Iphone7 suddenly can't receive the verification code, and no platform can receive the signal. It's good that there are no other interceptions in the 4G network.

Failure to receive the verification code on iPhone belongs to the problem of receiving SMS. There are many reasons, so I suggest checking them one by one. 1. Whether it is in arrears and whether the SMS function is normally opened; 2. Whether the short message can be sent normally, it is recommended to call the customer service of the local operator to reset the number of the short message center; 3. Change the machine and change the card test. It is suggested to change the card for another mobile phone, and check whether it is the function of the card itself or the setting of SMS; 4. Personal messages can be sent and received. If only the system information cannot be sent and received, it belongs to the system short message of the shielding platform. It is recommended to consult the customer service of local operators for cancellation or reflection.