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Iphone can't send text messages.

Abnormal setting of SMS center number may cause iPhone to be unable to send SMS or even activate iMessage. Let's learn how to query, modify or delete the SMS center number of iPhone.

Possible reasons for the failure of SMS sending:

● If the number of the current SMS service center is set incorrectly or modified, the SMS will not be sent. If sending fails for many times, please check whether the number of the SMS service center is set abnormally.

● After short messages are submitted to communication operators, a large number of short messages are usually sent at the same time, and there may be some delay, especially during holidays. If the short message contains bad content, the submission may fail, and the relevant results will be fed back to the user.

● After the operator successfully sends the SMS, it will receive the number after sending the SMS. Due to the interception of mobile phone firewall and mobile phone housekeeper software, the other party may not be able to receive SMS successfully.