What are the possible reasons why the phone can t send text messages?

If the mobile phone of China Unicom user cannot send SMS, you can try to reboot or change the mobile phone for testing, and check whether there are any of the following conditions:

1.If the SMS number is set incorrectly, please re-enter the correct SMS number.

2.No signal or low phone battery;

3.If the system is busy during peak SMS sending periods during holidays, we recommend that you try again later or avoid peak sending periods.

4.The format of the sending is incorrect. If you send a text message to a PHS user, you need to add the area code before the number;

5.The SMS was sent for more than 24 hours;

6.The phone has blocked the SMS sending function;

7.Being blacklisted for SMS;

8.insufficient balance of numbers;

9.The SMS inbox and sending box are full.

If the above reasons still cannot be solved, you can contact the local customer service or go to the business hall to confirm whether to activate the SMS function, and hand it over to the staff to deal with.

If the mobile phone can't send a message, you can solve it by the following methods:

1. If the mobile phone signal is not good, try to change to an area with a good signal.

2. Check whether there is any arrears in the phone bill, and if there is arrears, the user can resume normal use after payment.

3. If there is no arrears, please check whether the SIM card is faulty, reinstall the SIM card or go to the business hall to replace a new SIM card.

4. If the phone data is abnormal, you can restart it to try, if it still doesn't work, try to restore the settings, enter the phone's settings - general More settings - restore factory settings - restore all settings (no data on the phone will be deleted).

1. Confirm whether the balance of the phone bill is sufficient.

Please make sure that the phone card credit is sufficient, if the credit is insufficient, the SMS will fail.

2. Turn on and off the flight mode.

You can try to turn on and off the airplane mode to re-trigger the network chain after the configuration.

Permissions - Default App Settings - Info, set to Info.

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

Go to Info - click the dot in the upper right corner - Settings - More Settings - SMS center number, if you don't know the local SMS center number, contact the operator to get the SMS center number and set it.

Note: Check and judge other SIM cards with the same carrier.

mobile phones, you can also check the local SMS center number.

5. Compare and test SIM cards.

Build a test where you put your SIM card on another phone to send SMS. If the sending still fails, it is recommended to consult the carrier's customer service.

6. Reset all settings.

You can go to Settings - System Management - Backup & Reset - Reset All Settings - Restore, Restore Settings option. This operation will not delete the ** file, it will cancel the password, restore all settings, including: set wallpaper, unlock style, wifi, default open program, etc., and the logged in software account also needs to be logged in again.

Note: Go to Cloud Services.

Cloud backup of the device.

Backup data type.

System Data - Return - Immediate Backup can back up part of the system settings and desktop layout; Cloud service--Data synchronization--Turn on WLAN, Bluetooth, etc. to synchronize data to cloud service.

1. I changed the information center number of the SMS, so I couldn't send the SMS. First find the settings of our mobile phone SMS, although the types of mobile phones are different, but there are corresponding posture SMS settings. In the SMS blocking settings, see if the SMS number you accepted is mistakenly blacklisted, if there is a list, remove this number, and then send a text message.

2. Confirm that the mobile phone recognizes the content of the text message, find the "Advanced" setting of the mobile phone, and click on the mobile phone. In "Advanced", find the text options such as SMS Center Settings or SMS Center Number. In the "SMS Center Number" field, you can consult the correct local SMS center number, and then fill in the place to confirm.

3. The default settings are the correct settings of the phone, if you find it troublesome, you can restore the default settings of the text message. If there are some messages that are defaulted to push messages, and you can't receive them, just press the "Receive push messages" button bar in your phone's settings. You will be able to receive such information later.

1) First of all, confirm whether your mobile phone is down, if it is down, quickly charge the phone bill, if not, confirm whether your SMS center number is abnormal.

Summoning chaos"class="ikqb_img_alink">2) If it's not the phone bill and settings, it's the phone itself. You should have installed a butler or something like that, such as Phone Manager, and you may be able to optimize your phone when you disable the power and pants of the phone's built-in software such as SMS and other mobile phone software.

3) Solution: (Take Phone Manager as an example) Turn on Phone Manager to enable the SMS function (allow) by opening the Cleanup Acceleration Auto-Start Management. Just reboot it again.

4) If the above doesn't work, you need to reset your phone.

If you are using a vivo phone, you can view the following information:

1. Some SMS messages cannot be sent.

1. If the SMS contains sensitive words and the other party cannot receive it after sending: please use the test statement to send a short letter to confirm whether the other party can receive it normally, such as sending: Hello, thank you, etc.

If the other party can receive it normally, it means that the previously sent SMS may contain sensitive words.

2. Check whether it has been turned on"Fixed dialing"Business: After fixed dialing is enabled, you can only send messages to contacts in the fixed dialing list, but not to other numbers. If you want to continue sending text messages, cancel the fixed dialing service.

Go to Settings -- Application & Permissions -- System Application Settings -- **-- Mobile Unicom Telecom -- Fixed Dialing, turn off Fixed Dialing (the pin2 code that needs to be entered when closing needs to consult the operator for Biaofeng).

2. All text messages cannot be sent.

1. Turn on and off the flight mode.

You can try to try by toggling the airplane mode and re-triggering the network after trying.

2. Check whether Bu Lacha uses a third-party SMS app: Third-party SMS apps may have compatibility reasons, so it is recommended that you use the system's built-in SMS app. Go to Settings > Apps & Permissions > Permissions Management.

Permissions - Default App Settings - Info, set to Info.

3. Check whether the SMS center number settings are correct: go to Settings - Application and Permissions - System Application Settings - Information - More Settings - SMS Center Number, if you do not know the local SMS Center number, please contact the operator to get the SMS Center number and set it. Note:

Check with other nearby SIM cards from the same carrier.

mobile phones, you can also check the local SMS center number.

4. Compare and test SIM cards: It is recommended that you put your SIM card on other mobile phones to send SMS tests. If the sending still fails, we recommend that you contact the carrier's customer service.

5. Restore all settings: Back up data.

After that, go to Settings - System Management - Backup & Reset - Restore all settings and follow the on-screen prompts. Note: Restoring all settings will not delete any data or files, only all settings of the phone will be restored, some third-party application accounts need to be logged in again, please confirm that it does not affect the use of the software before operating.

If you can't send text messages in the bad Sun Cheng of using the oppo phone, don't worry, you can check it like this!

1. Confirm whether the mobile phone card is in arrears to ensure that the balance of the phone bill is sufficient.

2. If the message below the sent text message shows "sent" and "delivered", it may be a problem with the other party's mobile phone or network. You can open it in the three dots in the upper right corner of the information settings in Advanced settings"Get a delivery report"Function.

3. If the message below the sent text message shows "Sending Failed" or you cannot know the status of the SMS, it is recommended that you check whether the mobile phone information center number is correct, and set the path Open SMS > three dots in the upper right corner > Settings > Advanced Settings > Information Center Number, the SMS center number is different from operator to operator and region, it is recommended to consult the operator to understand the accurate number change and try to send information again.

5. It is recommended that you check whether the receiving number is correct and whether it contains special symbols.

6. If this situation occurs in individual places, it may be related to the signal or network environment, and it is recommended that you use it in a place with a good signal.

7. If this situation occurs in all places, it is recommended to replace the SIM card and replace it for comparison and observation in different time periods. If it is determined that the SIM card is a problem, it is recommended that you contact the operator to deal with it. If you have a problem with your phone, we recommend that you go to the official OPPO service center for testing.

Summary. There could be a few reasons why you can't send a text message. First, make sure you have a good phone signal, and you can try moving to an open area or restarting your phone to strengthen the signal.

Second, check to see if your phone is already in arrears or doesn't have enough balance to send text messages. In addition, you need to confirm that your phone settings are correct, such as whether the SMS center number is configured correctly. If everything works and the problem persists, try restoring your phone to factory settings or contact your phone manufacturer's or carrier's customer service for help.

There could be a few reasons why you can't send a text message. First, make sure you have a good phone signal, and you can try moving to an open area or restarting your phone to strengthen the signal. Second, check to see if your phone is already in arrears or doesn't have enough balance to send text messages.

In addition, you also need to confirm whether your mobile phone settings are correct, such as whether the number of the Luhe SMS Center is correctly configured. If everything is fine and the problem persists, try restoring your phone to its factory settings or contact the phone manufacturer's or carrier's customer service for help.

Can you tell us more about that?

Failure to send text messages may be due to poor mobile phone signal, arrears or insufficient balance on the mobile phone, or wrong settings on the mobile phone. If the problem persists, please reset your phone or consult the manufacturer's or carrier's customer service.