An error occurred when executing the request to set the SMS center number on the Apple mobile phone

Solution steps:

1. Make sure the signal is normal and turn off airplane mode;

2. Check whether the SIM card status is normal;

3. Check whether the send button is bright and clickable;

4. If you cannot click send after entering text, and the "Send" button is still gray and cannot be clicked, please set "SMS" in Turn off "Show subject bar";

5. If you send text messages to multiple people and enter the numbers manually, please make sure you use line breaks instead of spaces to separate each number.

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