My mobile phone just changed the usim card a few days ago. Why can't I send text messages? It always says "it hasn't arrived yet".

The processing method that the mobile phone cannot send short messages is as follows:

1. You can change your mobile phone to 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 there is a problem with the sim card;

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

5. Bring the mobile phone card to the local business hall for testing or replacement.

For more details, please contact Unicom customer service.

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