How to enable SMS on Xiaomi: The Complete Guide

Modern Xiaomi smartphones running on the shell of MIUI or the new HyperOS often use Internet protocols for messaging by default, which can confuse users accustomed to classic SIM cards. If you are looking for a way to enable SMS on the shaomi, then most likely it is a question of setting up the intermediary application or unlocking the service from the operator. In most cases, the hardware of the device is completely functional, and the problem lies in the software limitations or the wrong method of sending by default.

The process of activating standard text messages requires careful attention to system security settings, which in recent versions of Android have become much stricter.The user needs not only to find the application icon, but also to make sure that the system is allowed to use the mobile network for data transfer, not only Wi-Fi. The basic functionality of the phone depends on the correct operation of this module, as it often comes through confirmation codes from banks and government agencies.

In this article, we will discuss in detail all the stages of setting up, from checking the balance to complex cases when messages are blocked by the antivirus system. RCS classically SMS/MMS, What to do if the text input field doesn't appear or the send button is inactive. Follow the instructions Step-by-step to restore full communication.

Physical Connection and Status Check SIM-map

Before you go into the software settings, you need to make sure that the device is physically ready to work with the operator's network. Often users forget basic things, such as having a balance or the correct location of the SIM card in the tray. If the phone does not see the network, then no manipulation of the software will not force the SMS center to accept your message.

First of all, look at the top of the screen, and you have to show the signal level indicators and the network type (4G, 5G, H+). If you have a "No Network" or a crossed-out SIM card instead of the operator name, the problem is hardware in nature. Try to remove the tray with a paper clip, wipe the SIM contacts with a soft cloth and insert it back, making sure that it sits tight.

• 📱 Make sure that SIM-The card is active and not blocked by the operator.
• 💰 Check your account balance, as you need funds to send classic SMS (unless the tariff provides for free packages).
• 📶 Put your phone into flight mode for 10 seconds, then turn it off to restart the radio module.

Special attention should be paid to dual-simage models, which are popular among owners of Xiaomi Redmi and Poco. In the settings, you can choose a mode in which one SIM card is used for data transfer, and for calls and SMS - another, or the system tries to send a message through a card on which the money ran out.

⚠️ Note: If you are using the old SIM-A card that has been hand-cut from Mini or Micro format may not be in good contact with new slots, in which case it is better to replace it with a new card in the operator’s cabin, retaining its number.

Setup of the message application by default

The Android operating system on which Xiaomi smartphones are based can have multiple applications for text messaging, the system must clearly understand which program to use to process incoming and outgoing data, if the default application is selected, which does not have access to the network or SMS, the functionality will not work.

To set up, go to Settings, then select Apps, and find Application Management. In the list, find the standard Messages app (or Google Messages), which is where key switches are hidden to enable or deactivate various communication protocols.

The important thing is to choose the type of chat. RCS-Rich Communication Services, which are over the Internet and provide instant messenger functions. However, if the Internet connection is unstable, it is better to force the switch to the classic mode. RCS-chat and turn it off if you want to send regular SMS.

• 📲 Open the Messages app and click on the profile avatar or three dots in the corner.
• ⚙️ Go to Settings. → Chat settings (or) RCS).
• 🔘 Turn off the switch. Turn on. RCS, Use only standard SMS/MMS.

Also make sure that the application is given all the necessary permissions. In the app information menu, select the Permissions and make sure that access to Contacts, Phone and SMS is allowed. Without these permissions, the program will start, but will not be able to send or read a new message.

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If SMS is not sent after switching modes, try clearing the Messages app cache through the phone's settings menu, but do not delete the data so as not to lose your correspondence history.

Solving problems with the MIUI spam blocker

MIUI and HyperOS are known for their aggressive security system, which includes a powerful built-in antivirus and call blocker. Often, users, trying to protect themselves from advertising, accidentally block all incoming messages or prohibit sending SMS to unknown numbers, considering them spam.

To check your lock settings, open the Security app that is preinstalled on each Xiaomi phone. In the menu, look for the Blocker section. This is where you store a log of all blocked events. If you see your SMS or messages from important services there, you need to add the sender to the whitelist.

Inside the blocker menu, go to the settings (cog icon). Find Lock settings or Message Blocking. Make sure you don't check the box on "Block all messages" or "Block messages from unknowns." The keyword filter can also cause messages to disappear if it includes too general words.

⚠️ Note: Xiaomi Antivirus can flag short bank numbers as spam. Check the Locked folder in the Security app regularly to avoid missing important confirmation codes.

Setting up SMS Center (SMSC) and roaming

One of the technical reasons why messages don't leave is because the SMS center number is wrong, and that's the special number on the operator's network that all text messages go through, and it's usually automatically written when you first install the SIM card, but when you change region or flash your phone, that data can get lost.

To check and change the SMS number, open the Messages app, click on the three dots in the upper right corner and select Settings. Find Additional or Text Messages (SMS). There will be a Service Center field. The number must match your operator (for example, for MTS, Beeline, Megafon or Tele2, it starts with the country and operator code).

If you are abroad, it is critical to set up roaming correctly. Even if you have a travel package connected, the phone must have permission to transfer data in the background. → SIM-maps and mobile networks and make sure that the data roaming switch is activated.

• 🌍 Activate the data roaming option in the mobile network settings before traveling abroad.
• 📞 Make sure that the voice roaming service is connected to the operator (SMS often requires registration in the network).
• 🔄 Manually select the operator's network from the Network Type menu if the automatic search does not find the available towers.

In rare cases, you need to manually enter the SMS number. You can get the current number for your region on the official website of the operator or by calling the support service. Enter the number in an international format, starting with the plus and country code (for example, +7...).

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The wrong number of the SMS center is the most common technical reason for which messages hang in the status of "Sending" and never reach the recipient.

Use of Google Messages and Alternatives

The standard MIUI Messages app, which installs on Xiaomi phones for the global market and Russia, sometimes runs unstable or contains redundant advertising.The alternative is to use the Google Messages app, which is often preinstalled on the system but hidden or not used by default.

Google's app has a cleaner interface, better integration with the Android ecosystem, and no intrusive offerings. To go to it, find the app in the list of programs or download it from the Play Market. Once installed, the system will suggest making it the default app — accept this proposal.

The advantage of Google Messages is that you can use the Messages function in your browser, and it allows you to send and receive SMS directly from your computer, which is very convenient for you to work with. QR-code on the website messages.google.com with a camera phone.

If none of the standard solutions work, you can try third-party applications such as Textra or Pulse SMS. These have advanced functionality for setting the appearance and behavior of notifications. However, it is worth remembering that third-party applications can have access to your correspondence, so choose only trusted developers.

• 📥 Download Google Messages from the official app store if it is deleted or hidden.
• 🔐 Set up biometric protection for individual chats in the app settings.
• 🎨 Use design themes to personalize the message interface.

Resetting network settings and extreme measures

When software failures accumulate, a simple reboot may not help, and in such cases, the effective method is to reset the network settings, which will not affect your personal files, photos or contacts, but will return all the connection parameters (Wi-Fi, Bluetooth, Mobile Network) to the factory state.

To perform the reset, go to Settings, select Connection and Sharing (or Advanced Settings), and find Reset Wi-Fi, mobile networks, and Bluetooth. Confirm action. Once the reboot is done, the phone will behave like a new connection: you will have to re-enter Wi-Fi passwords, but the communication module will clear the bugs.

In the most difficult cases, when the problem persists even after a reset, you may need to check for system updates. SMS errors are often corrected with security patches. Go to Settings → About phone and click on the system version to check for updates.

⚠️ Note: Before performing any resets, make sure you remember passwords from your Wi-Fi networks as they will be deleted from the device’s memory.

If that didn’t work, it could be that the problem is physical damage to the antenna module or the SIM card itself, which is why it’s wise to go to an authorized Xiaomi service center or replace the SIM card with a carrier, and don’t ignore the problem, as SMS remains a critical communication channel for emergency services and banks.

Frequently Asked Questions (FAQ)