Abnormal SMS center number settings may cause the iPhone to be unable to send text messages or even activate iMessage. Let’s learn how to query, modify or delete the iPhone’s SMS center number.
Possible reasons for text message sending failure:
● The current SMS service center number is set incorrectly or has been modified, and text messages will not be sent. If the sending fails multiple times, please check whether the SMS center number is set abnormally.
● After the text messages are submitted to the communication operator, if the volume of text messages sent at the same time is large, it usually needs to be queued and waited for delivery. There may be a certain delay, especially during holidays. If the text message contains objectionable content, the submission may fail and the relevant results will be fed back to the user.
● After the operator successfully sends the SMS, the SMS has been sent to the receiving number. If the other party does not receive the SMS, it may be due to the interception of the mobile phone firewall and mobile manager software, resulting in the failure to successfully receive the SMS.
How to modify the SMS center number?
Excluding factors such as operators, the most likely cause of text message sending failure is that the SMS center number is set abnormally. Let’s take a look at how to modify the SMS center number on iPhone:
● Go to “Phone” and enter “*#5005*7672#” Touch the dial button to query the current SMS center number;
● If the SMS center number displays abnormally or is empty, please search for the local SMS center number through your operator or search engine and enter "*#5005*7672* SMS center number #》；
● The SMS center numbers in different regions are different. Please check the local SMS center number before proceeding. Remember not to enter your own number. You need to enter "+86" before the number (press and hold 0 to enter the + sign);
● After the input is completed, touch the dial key to set.
How to delete the SMS center number?
Go to "Phone", enter "##5005*7672#" and touch the dial button to delete the current SMS center number.
