Why does the mobile phone fail to send text messages?

If you can't send short messages by using vivo mobile phone, you can check the following contents:

1. Some short messages could not be sent.

1. Confirm whether the phone bill balance is sufficient.

Please confirm whether the phone bill of the mobile phone card is sufficient. If the phone bill is not enough, sending SMS will fail.

2. If the short message contains sensitive words, the other party cannot receive it after sending it.

Please use the test statement to send a short message to confirm whether the other party can receive it normally, such as sending: thank you, etc. If the other party can receive it normally, it means that the text message sent before may contain sensitive words.

3. Confirm whether the "fixed dialing" service is enabled.

When fixed dialing is turned on, you can only send information to the contacts in the fixed dialing list, but not to other numbers. If you want to continue sending SMS, please cancel the fixed dialing service. Enter settings-(application and permissions)-system application settings-telephone-corresponding SIM card-fixed dialing, and close fixed dialing (you need to input PIN2 code and consult the operator when closing).

4. Unable to send short messages to some short numbers.

Please go to the information APP-3 o'clock in the upper right corner-Settings-More Settings-Send payment information. It is recommended to set it to every query.

Second, all text messages can't be sent.

1. Confirm whether the phone bill balance is sufficient.

Please confirm whether the phone bill of the mobile phone card is sufficient. If the phone bill is not enough, sending SMS will fail.

2. Switch flight modes

You can try to switch flight modes, re-trigger the network and try again.

3. Check whether to use a third-party SMS APP.

Third-party SMS apps may have compatibility reasons, so it is recommended to use the SMS app that comes with the system. Go to Settings-Applications and Permissions/More Settings-Permissions Management-Permissions-Default Application Settings-Information and set it to Information.

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

Enter information-click on the dot in the upper right corner-Settings-More Settings-SMS center number. If you don't know the local SMS center number, please contact the operator to get the SMS center number and set it.

* Note: You can also check the number of the local SMS center by checking other mobile phones using the SIM card of the same operator.

5. Compare and test SIM cards

It is recommended to put the SIM card on other mobile phones to send SMS test. If it still fails to send, it is recommended to consult the operator's customer service.

6. Restore all settings

Do a good job of data backup, go to Settings-System Management/More Settings-Backup and Reset-Restore all settings, and follow the onscreen instructions.

Note: This operation will not delete the software or files, but only reset all setting options; For data security, important data can be backed up before operation.

If you have more questions, you can go to this link page to consult online customer service for details.