What is the reason why mobile phone text messages have been used normally, but suddenly they can t b

When encountering the situation that the SMS function of the mobile phone cannot be used normally, you can follow the following steps to check: Step 1: Please turn off the phone to plug and unplug the UIM card and then turn it on to test whether it is normal and check whether the mobile phone has some system software affecting the sending and receiving of SMS, if so, please uninstall it in time; Step 2:

Please test whether there is a problem with the mobile phone terminal or settings. Step 3: Check whether you or the other mobile phone has set the number as an SMS blacklist or spam number, and cancel the setting if so; Step 4:

If you can't check the settings, please back up the important files and contacts on your phone for factory reset or initialization. Step 5: If you still do not recover after the above operations or do not have the conditions for the replacement test, please go to the nearest telecom business hall for the replacement test or consultation and processing. To learn more about service offers, click on the "****" customer service 221 below to answer for you.

Here's how to deal with your phone not being able to send text messages:

1. You can change your mobile phone to see if you can send and receive text messages;

2. If you can send and receive text messages, it is recommended that you insert the card into your mobile phone again and send a text message to yourself to check if you can receive it;

3. If not, it is recommended that you check whether there is a problem with the SIM card;

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

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

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

Third-party SMS apps may have compatibility reasons, it is recommended that you use the system's built-in SMS app, go to Settings - Application and Permissions - Multiple Settings - Permission Management - Permissions - Default Chain Shed with Application Settings - Info, set to Messages.

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

Enter the information - click the dot in the upper right corner - set - more tent refers to 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: If you check other mobile phones with SIM cards from the same carrier, 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 - Restore All Settings - Restore, Restore Settings Options and Judgment. 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 Service - Device Cloud Backup - Backup Data Type - System Data - Return - Back to Back Up Now to back up some system settings and desktop layout; Cloud service--Data synchronization--Turn on WLAN, Bluetooth, etc. to synchronize data to cloud service.

If you are using an OPPO mobile phone and cannot send text messages during use, don't worry, you can check it out 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. If the center number is incorrect, you need to correct it in the SMS settings, restart or switch off the airplane mode to search the network again to see if it can return to normal.

5. The first tour of spring suggests that you check whether the received 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.

There could be a number of reasons why your phone suddenly won't send and receive text messages. Here are some possible reasons:

1.Signal issues: The phone may be in an area with a weak signal or no signal coverage, preventing you from sending or receiving text messages. You can try moving to a place with better signal strength, or wait for the signal to recover.

2.Network failure: Your carrier's network may be down or maintained and you can't send or receive text messages properly. You can contact your carrier to find out if there is a network issue.

Card Issues: Sometimes, the SIM card may malfunction or not be inserted properly. You can try to reseat the SIM card early to make sure it's inserted correctly and make sure the card isn't damaged.

4.Storage issues: If your phone's storage is full, it may affect the sending and receiving of text messages. You can check your phone storage, delete some unwanted files or apps to free up space.

5.SMS settings: Sometimes, your phone's SMS settings may be changed, making it impossible to send and receive SMS messages properly. You can check your phone's text message settings to make sure they're correct, and try restarting your phone for the settings to take effect.

6.Software issues: Some applications or system software may interfere with the proper functioning of the text messaging feature. You can try updating your phone's operating system or closing apps that may be causing conflicts.

If none of the above solutions resolve the issue, it is recommended that you contact your phone manufacturer's or carrier's technical support department, who may be able to provide more specific help and solutions. <>

If your phone bill has exceeded the limit, at this time the mobile phone is in a state of arrears, generally if someone else sends a text message, you can't receive it, at this time, as long as you pay in time, the text message will be sent to your mobile phone.

If your phone's memory card is full and you don't delete some useless content in time, there will be no space to receive new messages, so you won't be able to receive text messages from others. At this time, you are required to delete some unimportant content or information.

It may also be because the position you are in now is not very good, the signal is relatively poor, if the text message is sent in the process of Lingzhong, the receiver's signal is not good, and the ruler height may not receive the text message.

In addition, you also need to consider whether you have set up the SMS center number in your mobile phone before, refused to receive text messages from some unfamiliar numbers, or directly moved into the harassing messages and were blocked.

Here's how to deal with your phone not being able to send text messages:

1. You can change your mobile phone to see if you can send and receive text messages;

2. If you can send and receive text messages, it is recommended that you insert the card into your mobile phone again and send a text message to yourself to check if you can receive it;

3. If not, it is recommended that you check whether there is a problem with the SIM card;

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

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

You can't send or receive SMS, you need to check whether the SMS function is normal

1. Check whether the SMS center number is correct; Henan SMS center number +8613800371500;

2. Whether to install interception software, resulting in the inability to receive text messages;

3. Whether a large number of ** SMS in the early stage caused the SMS function to be abnormal.

If the above does not solve your problem, you can contact the local staff to help you inquire as soon as possible.

Restart your phone and try it to see if there is any effect on playing ** to surf the Internet.

It's not a bad signal.,Sometimes the text message can't be sent out where the signal is poor.,And then you can check if there's no phone bill.,In this case, you can't send it.,And the situation is whether the content you send is with digital money or other commercial text messages.,Or more sensitive words, etc.,In this way, the mobile phone text message will be blocked.,Or it's been sent before.,It's been blocked, you don't know.,Can you accept text messages? You can test it yourself, or simply call the customer directly and ask them to help you find out what's going on, or turn it off again and start it again

Just do a factory reset. Ordinary operations may have inadvertently changed the original settings.

1.Restart your phone2Check the settings to see if the sending message function is turned off.

Turn off and start again. If you can't do it, go to the business hall.

Your phone is set, turned off and found the settings in the boot, reset, or there is no phone bill.

Reboot it, and if it doesn't work, it's time to change your phone.

If your phone can't send text messages, you can try to test it back on or change your phone, and check if there are any of the following:

1. The SMS center number is set incorrectly, please re-enter the correct SMS center number;

2. No signal or low mobile phone battery;

3. The system is busy during the peak period of sending SMS during holidays, so it is recommended that you try again later or avoid the peak sending period;

4. The sending format 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 sending time exceeds 24 hours;

6. The mobile phone has blocked the SMS sending function;

7. Being included in the SMS blacklist;

8. The balance of the number is insufficient;

9. The SMS inbox and sending box are full.

The other party's mobile phone is turned off, or there is no signal, and the other party does not receive the SMS you sent, but if the time exceeds the validity period of the SMS set by the other party, it will also prompt that the sending is successful, but the receipt received is a failure.

Is it a red exclamation mark, maybe it's because your phone is out of bills, and it should be okay to charge a phone bill.

If it weren't for the lack of phone bills, it might be nice to restart it.