Why not send messages to Xiaomi: reasons and solutions

When a Xiaomi smartphone suddenly stops leaving SMS or MMS, it can be taken by surprise at the most inopportune moment. Whether it’s waiting for a confirmation code from a bank or an urgent message to a colleague, the inability to send text is understandable irritation, and the problem can be in both the banal network failure and the more complex conflicts of the software settings of the MIUI shell.

Often users start to panic, believing that the communication module has failed or broken. SIM-But most of the time, it's just a simple reconfiguration or a cleanup of the accumulated garbage in the system, and the algorithm of the messenger in Android is designed so that even a small error in the database can block the sending.

In this article, we will look at all possible causes of malfunction, from simple balance checks to complex manipulation of system settings, and carefully following the instructions will help you restore the device to work without going to the service center.

Checking the basic parameters of the network and SIM-card

Before you go into deep system settings, you have to rule out the basic reasons, and often the problem is that the phone just can't see the network or the network. SIM-The card has moved away from the contacts. Make sure that there are cellular icons in the upper right corner of the screen (G, E, 3G, 4G, 5G) and they're not crossed out.

If you are using a two-sim machine, check which one is the one that is SIM-The card is chosen by default for sending messages. MIUI Or HyperOS settings can get lost after an update or accidental switch, and it’s also worth checking the balance: even if the Internet works, classic SMS requires funds in your account or a connected package.

• 📶 Make sure that the Flight mode is on and off to force the reboot of the communication module.
• 💳 Remove and re-insert. SIM-map, rubbing the contacts with soft cloth.
• 📞 Check if there is a lock on sending messages to short numbers through the operator.

⚠️ Note: If you have two on your phone SIM-If you have a card and your messages don't go away, try temporarily disabling the second SIM in your settings. Sometimes a priority conflict interferes with the standard application.

Another important aspect is format support, if you're trying to send a message to an old phone and you have a feature enabled. RCS-If you have chats, you may not get text. SMS dialogue-setting.

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Setting up an APN access point for MMS

If normal text messages leave and pictures or audio files are stuck in the “Send” status, the problem almost certainly lies in the settings of the access point (APN). This is especially true if you have just changed the operator or inserted a new one. SIM-card in your Redmi or Poco.

Automatic settings don't always come in the right way. You'll need to manually prescribe the settings for your carrier, you can find them on the carrier's official website or by calling support, and even a single character error will cause the MMS to stop loading.

Below is a table with typical parameters for the main operators, however, the data may change, so it is better to check the current information:

To change the settings, go to the Settings path. → SIM-maps and mobile networks → Choose a SIM. → Access points (APN). Click on "New Access Point" or edit an existing one. Once you make changes, be sure to restart your smartphone so that the settings apply.

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Cleaning the cache and application data Messages

The accumulated garbage in the memory of the application is one of the most common reasons why messages are not sent to Xiaomi. Over time, the SMS database grows, indexing errors occur, and the system stops correctly processing new incoming and outgoing packets.

To solve the problem, you need to clean it up. It's safe: your correspondence will not be deleted if you select "Clear cache"; however, if the problem is serious, you may need to completely clean the data, which will reset the settings of the message application itself (but will not delete the texts if they are synchronized with the cloud or are in the system database).

Follow the following steps:

1. Go to Settings → Applications → All applications.
2. Find the list of “Messages” (or “Messages”).
3. Select the item "Storage".
4. Click “Clear” and select “Clear Cache”.

⚠️ Note: Before performing a complete data cleanup ("Reset"), make sure that important correspondence is saved, although in modern versions of Android the database is stored. SMS stored separately from the application cache.

After this procedure, restart the device, and often this simple step solves the problem of dead messages, and if you use a third-party application, like Textra or Google Messages, the actions are similar: clean the cache of the particular application you use.

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Conflicts with antiviruses and blockers

MIUI is famous for its built-in security system, which sometimes works too hard. Built-in antivirus or installed third-party defenders (like Dr.Web or Kaspersky) can block sending messages, considering them suspicious, especially if the text has links or short codes.

Check the list of blocked numbers and events in the Security app, it may be that the system has mistakenly placed your own or recipient number on the blacklist, and it is worth checking the permissions for the message app.

• 🛡️ Open the Security app» → Permits → SMS.
• 🚫 Check the Blacklist for important contacts.
• 🔌 Disable third-party antiviruses for a while to check.

Often users forget that the app must have rights to access the phone and contacts. Without this, the send mechanism may not work properly. Go to the application settings and make sure that all the necessary switches are activated.

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If the message doesn’t go to just one particular contact, try removing it from your contact list and saving it again. Sometimes the format of the number record (with +7 or 8) causes a conflict in your phone’s database.

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Google Services Failures and System Errors

Many of today’s messaging features are tied to Google Play services. If Google’s framework doesn’t work properly, it can also affect the standard SMS feature, especially the RCS feature (Chat features), and updating or crashing Google services is a common cause of problems.

Try to clear your Google Play data. Go to Settings → Apps → All Apps → Google Play Services → Storage → Clear all data. Fear not, it won’t delete your accounts, but it will reset your sync settings, which often helps.

If the date is lost on the smartphone (for example, it is 2015), security certificates will not work, and messages can not be sent through secure channels or even through the operator’s network.

⚠️ Warning: Never set a date manually in the past or far into the future for a "test" it breaks the job SSL-certificates, which stops working not only SMS, but also browser and applications of banks.

If nothing helps, it may be the recent system update that is to blame, so wait for the patch to come out or, if you’re using MIUI beta, roll back to a stable build.

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System failures are often solved by a comprehensive cache cleaning not only of the Message application, but also of Google Play services, as well as checking the relevance of the date and time.

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Radical measures: resetting network settings

When all methods have been tried and messages are still in the "Send" status, the only thing left is to reset the network settings, which will bring all mobile, Wi-Fi and Bluetooth settings back to factory values. This will not delete your personal files, photos or contacts, but will forget your Wi-Fi passwords.

To perform the reset, go to Settings → Connection and Sharing → Reset Wi-Fi, mobile networks and Bluetooth. Confirm action. Once the reboot is done, the phone will look for the network as new. You will have to re-enter the Wi-Fi passwords, but the APN settings must be adjusted automatically.

This method is effective in 90% of cases where the problem lies in deep software conflicts of the configuration of the radio module, and if this did not help, it may be a hardware problem (antenna, plume) or a lock on the part of the operator.

FAQ: Frequently Asked Questions