Realmeq3s mobile phone can't send text messages

The number of the information center is wrong, the number is in arrears, the network base station receives and forwards abnormally, and the mobile phone is out of order. Solution:

1. Consult the phone bill balance of the mobile phone card to see if there is any arrears.

2. Correct the information center number, SMS-SMS settings-information center number setting, and whether the information center number is correct (compare it with similar local cards or consult the operator to confirm the message center number).

3. Compare and observe the changes of SIM card and different time periods.

4. Try to restore the factory settings of the backup data.

5. If it is still unresolved, please take the purchase invoice, warranty card and mobile phone to the nearest customer service center for testing and handling.