How to send SMS from the smartphone Xiaomi Redmi: a step-by-step guide

Xiaomi Redmi’s current MIUI and HyperOS smartphones offer users a variety of ways to communicate, from instant messengers to video calls. However, classic text messages remain an indispensable tool for receiving confirmation codes, communicating with subscribers without the Internet or emergency communication. The sending process may seem trivial, but Xiaomi’s ecosystem has its own nuances that affect the stability of the SMS service.

Users often experience situations where a message freezes in the status of “Submit” or does not leave at all, going to the blacklist of the operator. This can be caused by both software failures of the shell and incorrect settings of the message center. Understanding the basic principles of the Android communication module on Redmi devices will help to avoid most typical errors and quickly restore functionality.

In this guide, we will go into detail not only the standard algorithm of actions, but also hidden settings that are often ignored. SIM-Cards, spam blocking and specific features of the Messages app that turn ordinary messages into SMS-Customer in a powerful communication management tool.

Basic procedure for creating and sending a message

The standard process of initiating a dialogue on Redmi is intuitive, but you should pay attention to the choice of the sender if the device has two sets of dialogs. SIM-By default, the system uses the SIM that is assigned to voice calls or was used last. To get started, you need to find an icon on your desktop or in the application menu called “Messages” or Messages, which usually has a yellow or blue background depending on the firmware version.

Once the app is launched, the bottom right corner of the screen (or the top, depending on orientation) is a new message creation button, often denoted by a plus or a pencil. Clicking on this element opens an input field where you can select a contact from a phone book or manually dial a number. MIUI allows you to add recipients dynamically simply by entering numbers or letters of a name.

It's important to note that when you type in, the system automatically detects language and offers autocomplete options, which speeds up typing. If you send a message to an international number, make sure that the country code is entered correctly, usually this requires replacing the first zero in the number with the state code. After entering the text and checking the content, you just have to click the send button, which transforms into an arrow or a paper airplane.

• 📱 Click on the Messages icon on the home screen.
• 📝 Select the button to create a new message (plus or pencil).
• 📞 Enter the recipient number or select the contact from the list.
• 💬 Type the text of the message in the lower input field.
• 🚀 Press the send button to the right of the text input field.

Settings SIM-map and sender selection

Redmi smartphone owners often use two numbers at the same time, which requires a clear understanding of the logic of choice. SIM-Unlike some other vendors, Xiaomi allows you to flexibly customize preferences for each SIM card separately or choose the sender manually before each shipment. SMS, And the other one has an unlimited package.

To manage these parameters, you need to go to the settings of the message application itself or to the general settings of the system. SIM-Cards where you can assign a "Main" card to SMS. If this option is disabled, the system will ask you from which number to send a message, which can be inconvenient when sending a mass mailing, but is useful for controlling costs.

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Use the “Send from another SIM” function right in the dialog window by clicking on the SIM card icon next to the input field to quickly change the sender without diving deep into the settings.

It is important to note that when changing the main SIM-Call cards, the system can suggest that you automatically change the card for messages, and the logic of the shell suggests that this makes life easier, but if you have a tariff for incoming on the second SIM, you better leave the settings manually. Also in this section you can find roaming settings, which are critical when traveling abroad to avoid writing off huge amounts for sending.

⚠️ Attention: When sending SMS in international roaming without connected appropriate tariff the cost of one message can reach significant amounts.

Multimedia Messages (MMS)

Sending photos, videos or audio via the standard MMS protocol to Xiaomi Redmi requires additional settings and understanding of limitations. Unlike conventional text SMS, multimedia messages use mobile Internet (data transfer) even if you do not use instant messengers. So make sure that mobile data is turned on even if you are in Wi-Fi coverage, as some operators require mobile IP for the MMS gateway.

The process of adding an attachment is simple: in the message creation window, you need to click on the clip icon or the camera. The system will suggest selecting a file from the gallery, taking a new photo or recording an audio. Once the file is selected, it will attach to the message and its status will change, indicating that it is an MMS. The file size is often limited by the carrier (usually up to 300-500 KB), so the smartphone can automatically compress images before sending.

If you don't have a multimedia messaging package, you can charge a flat fee for every photo you send. SIM-Make sure that mobile Internet is enabled on the card from which you plan to send, or that the correct gateway is configured MMS network-wise.

• 📷 Click on the clip icon in the message creation window.
• 🖼️ Select “Gallery” for a photo or “Camera” for a new photo.
• ⚙️ Check if mobile data transmission is enabled.
• 📉 Keep an eye on the size of the investment so that it does not exceed the operator’s limits.
• 💰 Keep in mind that MMS Charges are charged separately from SMS.

Solving problems with sending and status "delivered"

The situation when a message is long spinning in the status of “Send” or changes the status to “Not delivered”, familiar to many users. On Xiaomi Redmi smartphones, one of the common reasons is an aggressive energy saving system that can “kill” the background processes of the message application, especially if the SMS function has not been used for a long time.

The first step in diagnosis should always be to check the status of the network. If the network icon flashes or displays "Emergency Calls Only", the problem is clearly not in the phone. If the network is stable, try rebooting the smartphone - this updates the registration in the operator's network and resets temporary errors of the communication module. In more complex cases, cleaning the Messages app cache through the application settings menu helps.

Another important parameter is the number of the message center (SMSC), prescribed SIM-If this number is lost or missing, messages will not leave under any circumstances. SIM-maps in the message section, having first learned the current number from your carrier, resetting the network settings to the factory also often helps to correct the software bugs of the protocol.

⚠️ Warning: If a message doesn't send after a few attempts, don't keep on indefinitely pressing "Repeat." SIM-- the card operator because of suspected spam attack. 10-15 minute.

Blocking Spam and Filtering Messages

MIUI and HyperOS have a powerful built-in antivirus and security module that actively filters incoming messages. Often users complain that they do not receive confirmation codes from banks or services, because the system mistakenly classifies them as spam.

Inside the security application, you need to find the Antispam section and go to the blacklist settings, where you can see all blocked messages and if necessary, add a number to a whitelist or unlock a specific message, and check the Smart Blocker settings, where you can turn off keyword filtering if it interferes with the receipt of important information.

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Xiaomi's built-in filter blocks SMS with advertising keywords and short numbers, considering them spam. Check the Spam folder in the messaging app regularly.

In addition, it is possible to block messages from unknown numbers or hidden numbers, which is useful for protecting against intrusive advertising. However, be careful: turning on the "Block All Unknowns" feature can lead to you missing an important notification from a courier or a doctor who calls from an unfamiliar number.

• 🛡️ Open the Security app on your desktop.
• 🚫 Select the “Antispam” section in the lower menu.
• ⚙️ Click on the settings gear in the upper right corner.
• 📜 Go to the “Black List” or “Blocking Settings».
• ✅ Turn off filtering for important contacts or services.

Table: Comparison of SMS and MMS on Xiaomi

To better understand the differences between message types and their system requirements, we suggest that you look at a comparative table that will help you plan your communication properly, especially in a situation of limited traffic or balance.

FAQ: Frequently Asked Questions