No messages on Xiaomi: step-by-step solution to the problem

When Xiaomi stops receiving text messages, it often takes users by surprise. This can be critical if you are waiting for a confirmation code from the bank or an important notification from the delivery service. The problem is not always a hardware breakdown, most often it is a software conflict or incorrect network settings.

Owners of Redmi and Poco smartphones face this less often than users of the flagship Mi series, but the statistics remain disappointing. Mi owners are more likely to complain of MIUI failures, which leads to the loss of SMS. MIUI sometimes aggressively optimizes background processes, which interferes with the work of standard applications.

Before you panic and bring the device to the service, you need to conduct a basic diagnosis, 90% of the time the problem is solved by resetting the network settings or reconnecting. SIM-We'll look at all the possible causes, from simple signal interference to complex system service conflicts, and propose effective ways to address them.

Primary diagnosis and signal verification

The first step should always be to check the current status of the network. Often the phone shows the presence of "sticks" of the signal, but there is no actual connection to the base machine. This state is called a "false signal", and it blocks incoming SMS. Note the indicator at the top of the screen: if there are no data arrows or voice call icon near the network type (4G, LTE), the communication is unstable.

Try to put the device in flight mode and back again. This simple manipulation causes the modem to re-register on the operator's network. Go into the notification curtain and press the aircraft icon, wait 10 seconds, then turn it off. If the messages didn't come after that, check the balance. SIM-Make sure the plan is active and there are funds on the account, as some operators block incoming SMS with zero balance.

It's also worth checking if the sender is locked. Modern versions of Android and MIUI have powerful spam filters. Perhaps important messages from a bank or service automatically enter the Spam or Blocked folder. Open the message app, click on three dots or menu icons, and select the lock section. If there are any SMS you want, add a number to the whitelist.

• 📶 Check the network indicator and make sure there is no “No Network” or “Emergency Calls Only” label».
• 🔁 Reboot your device to reset temporary network errors.
• 💰 Make sure you're on SIM-card positive balance and the tariff has not expired.
• 🚫 Check the Spam folder in the message app for blocked SMS.

⚠️ Note: If the network indicator shows 4G/LTE, But you can't make the call, the problem may be on the operator's side.

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Use the code ##4636## to log in to the engineering menu. Select Phone Information and check if forced switching is only on LTE if your carrier requires 3G for voice calls and SMS (CSFB technology).

Settings SIM-card-switch

Physical condition SIM-The cards and the correctness of the trays are key, because the contacts on the card may have oxidized, or the card itself may have deformed over time, and if you use a card that is hand-cut from Mini or Micro to Nano, the risk of error increases many times over. Uneven edges can prevent tight fit of contacts.

Try to get the tray out. SIM-Check the chip carefully for scratches or dirt. Rub it with a soft dry cloth. If you have a two-symbol smartphone, try moving the card to another slot (SIM 1 SIM 2) may have a program priority for data transmission and a second priority for voice and SMS, or vice versa, depending on the firmware settings.

In the settings MIUI It is also worth checking which one SIM-The card is the default card for sending and receiving messages. Go to Settings → SIM-Maps and mobile networks: Make sure that the card you select is not subject to a media message restriction (MMS) Sometimes it helps to completely delete your profile. SIM-card from the system (if this option is available in your version of Android) and add it again, although more often it is enough to simply restart the phone after removing the card.

If you have the opportunity, insert your own. SIM-If you have a card on another phone, if you have a text message coming in, it's your Xiaomi, and if it's not coming in, it's the issue on the operator's side, or on the card itself, and it needs to be changed in the phone.

Resetting network settings and updating configuration

Network configuration errors are one of the most common causes of failures, and over time, the system accumulates cached data about base stations that may conflict with your current location, resetting network settings will return modem and Bluetooth settings to factory values without affecting your personal files, photos or contacts.

To do this, go to Settings → Connection and Sharing → Reset Wi-Fi, mobile network and Bluetooth. Click Reset button at the bottom of the screen. The system will request a confirmation or unlock password. After that, the phone will reboot, and you will have to re-enter passwords from Wi-Fi networks and reconnect Bluetooth headphones.

Once reset, the system will automatically request new APN settings for mobile internet. They usually come automatically, but if they don't, they can be manually set or left by default. It's important that after reset, you allow the messaging app to access the network again if the system requests it when it first starts.

Working with message app and cache

Google’s standard Messages app or MIUI system app may not work properly due to overflowing cache or bugs in the update.Cache clearing is a safe procedure that deletes temporary files but saves correspondence history. However, clearing the application’s data can delete the SMS history, so proceed with caution.

Go to Settings → Applications → All apps. Find Messages in the list. Click on Memory. Select Clear Cache. If the problem persists, you can try Clear All Data, but be sure to back up SMS beforehand if it's important to you. After that, the app will return to "as after installation."

Also worth checking permissions. In the same Apps menu, select Permissions. Make sure the messaging app has access to: SMS, Contacts, Phone and Notifications. Without the right to read and send SMS, the app will not physically be able to process the incoming message. In new versions of Android 12/13/14, these permissions can be reset after major system updates.

• 🧹 Clear the Messages app cache through the application settings.
• 🔒 Check if you have all the necessary permits to work with SMS.
• 🔄 Update the app through the Google Play Store to the latest version.
• 📱 Try installing an alternative app, such as Textra or Pulse. SMS, check out.

⚠️ Note: If you use a third-party SMS app, make sure it is installed as the default app, otherwise the system will block it from running in the background.

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Clearing the cache and checking the permissions solves the problem in 60% of cases when the failure is software-based within a particular application.

Impact of MIUI energy saving and background processes

The MIUI shell and its successor HyperOS are known for their aggressive energy-saving policies, which can kill SMS reception as energy-intensive if the phone is in deep sleep or battery-saving mode, especially for models with large screens and powerful processors, where the system tries to extend battery life.

Check the battery settings. Go to Settings → Battery → Energy Saving. Make sure Super Savings mode or hard restrictions on background applications are not turned on. For Messages, the best thing to do is set background activity limits to No Limits mode, which will allow the system to deliver messages even when the screen is locked.

There is also a function called Second Space or Game Turbo Mode that can block notifications. If you are in the game or using a second profile, SMS can come but not show. Check the notification settings for a specific application in the Settings → Notifications and Status bar → Notifications Management. Make sure the Show Notifications switch is activated and the display style is Detailed, not No Sound or Hide.

Problems with RCS, 5G and modern communication standards

Modern smartphones support the technology RCS (Rich Communication Services, which allows you to send messages over the Internet, like instant messengers, sometimes there is a conflict between traditional SMS and chat. RCS. If you don’t have internet and your phone is trying to send or receive a message via RCS-protocol may cause delay or delivery error.

Try temporarily disabling chat features.In the Google Messages app, click on your profile avatar → «Chat settings" (or RCS) And turn it off. And then all the messages will come in as normal text messages./MMS. This often helps if the operator is routed incorrectly. RCS-traffic.

The network needs special attention. 5G. In some regions, coverage 5G It's there, but it's unstable. The phone can hang on. EDGE/5G, non-switching to stable 4G/LTE, What blocks SMS. In the engineering menu or in the network settings (Settings) → SIM-map → Preferred network type: Try to set a priority for a while 4G/LTE. This stabilizes the connection and often returns the ability to receive text messages.

• 📡 Turn off the function. RCS (Chat) in the test message application settings.
• 📶 Forced to switch the network to mode 4G/LTE, excluding 5G/3G.
• 📵 Check if the Do Not Disturb mode is enabled, blocking notifications.
• 📲 Make sure the date and time are automatically set (time error breaks security certificates).