Suddenly there is no caller ID, so I can't send text messages.

If all the numbers can't display the incoming call normally when making a call, I suggest you try to change your mobile phone. If only a few numbers display abnormally, it may be caused by applying for caller ID restriction service; If your mobile phone can't send short messages, I suggest that you can also check it in the following ways:

1. I suggest you change your mobile phone and see if you can send and receive short messages.

2. If you can send and receive short messages, I suggest you plug the card back into your mobile phone and send yourself a short message to see if you can receive it.

3. If not, I suggest you check whether it is a sim card problem;

4. Check whether the number of SMS center is set correctly.

If the problem cannot be solved normally after the above situation is eliminated, it is suggested that you can contact Unicom 100 10 customer service to verify the relevant information and handle it.

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