How to set up SMS on Xiaomi: the complete guide

Owning a modern smartphone from the Xiaomi brand implies the use of all its communication capabilities, and the basic function of text messaging plays a role here. SIM-Standard settings are not automatically activated, requiring manual intervention.

The messaging application may be incorrect due to a variety of factors, from simple errors in the access point parameters to system resolution conflicts in the MIUI shell. Understanding how to properly configure SMS on Xiaomi will avoid problems with the delivery of important confirmation codes or multimedia files.

In this article, we will take a detailed look at all stages of the configuration, from basic network parameters to fine-tuning specialized applications, and learn to eliminate common errors that interfere with full messaging using built-in system tools.

Basic configuration of the message centre

The first step in the setup process is to check that the message center number (SMSC) entered is correct, which is the gateway through which all your outgoing text messages pass, and its incorrect value is the most common cause of failure.

To check and edit data, you need to open the standard Messages app, click on the three dots in the upper right corner and select Settings. In the menu that opens, you should find the "Additional Settings" or "Settings" section. SIM-maps, where the current center number is displayed.

If the number is different from the standard number for your operator or the field is empty, you need to enter it manually. SIM-cards, but in case of network failure, they can be found on the official website of the mobile provider or in the support service.

It is important to note that for dual-symbol devices, the settings may vary for each card. SIM-The card you are currently sending messages through.

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If the message center number is down, try extracting it. SIM-card, restart the phone, insert the card back and check the settings again – often this causes the system to re-query the parameters from the operator.

Configure MMS and APN settings

Sending multimedia messages (MMS) It requires a more complex configuration, because it uses the mobile Internet, not just the voice channel, and the key is to set the access point correctly (APN) in the relevant profile of your SIM-map.

To get to the desired menu, go to Settings → SIM-Maps and mobile networks. Choose active networks. SIM-map, then click "Access Points (APN)». A profile should be created or edited here with parameters corresponding to your carrier.

The APN profile must contain the fields “Name” (any, for example, MMS) and “APN” (usually the address of the type mms.operator.ru), and often you need to specify a proxy server and port, if the specifics of the mobile operator so require.

⚠️ Attention: After changing parameters APN Make sure to turn on and off Flight mode or just restart the device so that the new settings take effect. MMS may not go.

The MMS is checked by sending a test image to yourself or another contact. If the message is stuck in the “Send” status, check if the mobile Internet is on at the time of sending, since MMS often do not leave via Wi-Fi without special settings.

Working with the Messages app from Google

Modern Xiaomi smartphones often use Google’s standard Messages app, which supports the RCS (Rich Communication Services) protocol, which allows you to send messages over the Internet, similar to instant messengers, ensuring high quality media and delivery statuses.

To activate advanced features, open the app, go to settings, and select Chat Functions. Here you need to turn on the "Enable Chat Functions" switch. The system will check the phone number, which may take some time.

Use of the RCS-Chats have advantages, such as typing and large file submissions, but both require a supported app and an active Internet connection to work.

• 📱 RCS-chats work over an Internet connection (Wi-Fi or mobile data), saving the balance of the main tariff.
• 🔒 Encryption of messages is provided by end-to-end encryption, which increases the confidentiality of correspondence.
• 📶 Backup chat history is possible in your Google account, making it easier to switch to a new smartphone.

If the connection status in chat features constantly shows “Connect” or “Error”, try clearing the Messages app cache through the application management menu in the system settings.

Solving problems with sending and receiving

Situations where SMS is not sent or not received, can be caused by software failures in the Android operating system or the shell MIUI. The first thing to check whether there is a mode "Do not disturb" or "Air mode", which block data transmission.

Also worth paying attention to is the fullness of the device memory: if the internal storage is crowded, new messages may simply not be saved in the application database, which creates the illusion of loss or non-delivery.

In some cases, the problem lies in blocking the sender number with a spam protection system, and the built-in filter can mistakenly classify important messages as advertising and hide them from the user.

For a deep diagnostic, you can use the engineering test menu, although this requires caution, and entering the code ##4636## in the dialer allows you to enter the phone information menu, where you can see the registration status on the network.

Setting up spam filtering and blocking

The MIUI shell has powerful built-in tools to protect against unwanted messages that require competent settings. Getting blacklisted can occur not only at your request, but also automatically on antivirus databases.

To manage the lock list, open the Security app (green zipper icon), scroll down to the Lock section, and select the message lock settings, and you can see all the blocked numbers and texts here.

The system allows you to create your own rules, such as blocking all messages containing certain keywords, or hiding notifications from unknown numbers, which is useful for combating aggressive advertising.

⚠️ Warning: Be careful when enabling the “Block All from Unknown Numbers” feature, you may miss important notifications from courier services or banks that use short numbers or new SIM cards.

Check the Spam folder in the message app regularly, as confirmation codes from services that the system has deemed suspicious may be included there, and you can set an exception for such numbers by adding them to the whitelist.

APN parameter table for major operators

MMS often requires manually prescribe access point settings to work properly, and the following is a table with the current settings for the largest telecom operators operating in the region.

When creating a new access point, do not change the other fields (login, password, authentication type) unless the operator provides them separately.

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The correct settings of APN are critical only for MMS. Conventional text SMS is sent through the voice channel and does not depend on the parameters of the mobile Internet.

Frequently Asked Questions (FAQ)