Sending messages on Xiaomi smartphones only seems like a trivial task. In fact, there are many nuances hidden in the MIUI ecosystem, from standard SMS to integration with branded services like Mi Messages or Xiaomi Cloud. If you encounter a “Message Not Sended” error, can not find chat history or want to optimize traffic consumption, this article will help you understand all the subtleties.
We will consider not only the basic methods (SMS, WhatsApp, Telegram), but also little-known MIUI functions: for example, how to send messages through the Duplicate of applications to separate personal and work correspondence, or why notifications about new SMS sometimes disappear.
1. Sending SMS to Xiaomi: Standard App and Alternatives
By default, all Xiaomi smartphones (from Redmi Note 10 to Xiaomi 14 Ultra) have a proprietary Messages app (com.android.mms) that supports not only SMS, but also MMS (to send photos/video), and is integrated with Xiaomi Cloud for backup.
- 📱 There is no end-to-end encryption (unlike messengers like Signal).
- 🌍 Roaming problems: some operators are blocking SMS When connecting to foreign networks.
- 🔄 Limitation on the number of characters: 160 SMS, 1600 for MMS (If the message is exceeded, it is broken into parts).
To send SMS via the standard application:
- Open “Messages”** (the envelope icon on the home screen).
- Click on the + icon in the lower right corner.
- Enter the recipient number in +79XXXXXXXXX or select the contact from the list.
- Write the text (up to 160 characters) and click "Send"** (arrow to the right).
☑️ Pre-shipment check SMS
If the SMS is not sent, check:
- 📶 Network Coverage: Go to Settings → SIM-Maps and mobile networks and make sure the right operator is selected.
- 💰 Account balance: some operators block SMS negative-balance.
- 🔧 Centre SMS: In the Messages app settings, check the number SMS-The center (for MTS) +79169991111, for Beeline — +79030009000).
How to change the number SMS-centre?
2.SMS problems on Xiaomi: why messages are not sent
On Xiaomi smartphones with MIUI 14 and later, there is a bug: with the activated mode “Energy saving”, the Messages application may not sync with the network, which causes SMS to leave with a delay or disappear altogether. This applies to Redmi 12, POCO X5 and others based on Android 13/14.
Other common causes:
| Problem. | Reason. | Decision |
|---|---|---|
| SMS is not sent | Wrong number. SMS-centre | Check the number in the settings or ask the operator |
| The message is in the status of "Sending" | Weak signal from the network | Restart your phone or switch to 3G (In Settings → SIM-map → Preferred type of network) |
| No incoming SMSs coming in | Blocking by the operator (spam filter) | Send. USSD-request *111*123# (for MTS) or contact support |
| Disappear notifications of new SMS | Optimizing the battery for the Messages app | Turn off optimization in Settings → Applications → Messages → Battery |
⚠️ Note: If you use Google Messages instead of the standard app, make sure that the option is enabled in the settings «SMS Wi-Fi (not available on all carriers) otherwise, messages will only leave via the mobile network.
For diagnosis, send a test SMS to a short number:
Send an empty message to 0000 (to check the connection).
For MTS: send the word Balance to 111.
For Beeline, send Balance to 102.3. Sending messages via instant messengers: WhatsApp, Telegram, Viber
Messengers on Xiaomi are more stable than SMS, but there are some nuances here, too: For example, on WhatsApp, MIUI Global’s firmware sometimes triggers automatic background optimization, which causes notifications to arrive with a delay.
- 🔄 Disable battery optimization for messenger in Settings → Annexes → WhatsApp → Battery → No restrictions.
- 📥 Enable autoload media in the chat settings (otherwise, photos/video will not be downloaded automatically).
- 🔒 Set up notification lock for specific chats (long tap on dialog) → «Notifications» → «No sound»).
Telegram on Xiaomi has a problem with secret chats: if incognito mode is enabled in MIUI, notifications of new messages may not appear in the curtain.
- Open Settings → Notifications and Status bar → Application Notifications.
- Find Telegram and turn on the “Show Notifications” option**.
- For secret chats, allow “Sensitive Content”** in the notification settings.
If messengers are not synchronized with contacts, check:
- 📇 Contact access permissions (Settings) → Annexes → messenger → Permits).
- 🔄 Synchronization of Google account (Settings) → Accounts. → Google → Synchronization of contacts).
- 📱 Update the app (in Play Market or Mi App Store).
4. MIUI Messages proprietary messenger: features and configuration
Xiaomi’s Messages app** does more than send SMS. It’s built in:
- 📎 Send files up to 100MB (via Mi Cloud).
To include additional functions:
- Open the message» → press on «⋮» (three-point) → «Settings»**.
To protect the chat rooms:
- Choose a dialogue → press on «⋮» → «Block chat».
⚠️ Note: If you use a duplicate application (function) MIUI For cloning messengers, make sure that both copies WhatsApp/Telegram Otherwise, there may be conflicts with notifications and synchronization.
💡
To speed up SMS sending, disable the “Deliveration” option in the Messages app settings, which will reduce the waiting time for a response from the network, but you will not see the “Delivered” status.
5.Sending Messages via Xiaomi Cloud and Mi Share
If you need to send a message from Xiaomi to another device of the same ecosystem (for example, from the Redmi Note 12 on the Xiaomi Pad 6), you can use Mi Share or Xiaomi Cloud.
Method 1: Mi Share (Fast Transmission)
- Open “Quick Transfer”** (the icon in the notification curtain or in Settings → Connections and Sharing).
Method 2: Xiaomi Cloud (Sync)
- 📱 On both devices, sign in to one Mi Account.
- 📝 In the app “Notes” or “Messages” create text.
Advantages of these methods:
- 🚀 Unlimited traffic (transfers via the local network or the cloud).
- 🔒 Encryption (data protected during transmission).
- 📱 Cross-platform (works between smartphones, tablets and laptops with MIUI+).
💡
Mi Share works without internet, but both devices must be connected to the same Wi-Fi network or be within Bluetooth range (up to 10 meters).
6. Automation of sending messages: tasks and triggers
On Xiaomi, you can set up automatic messaging on a schedule or under certain conditions, such as sending SMS to relatives when the battery is down to 10%, or notifying colleagues about entering the office by geolocation.
To do this, use the application "Automation"** (Automation in global firmware):
- Open the settings → Additional → Automation.
- Press + → select If (trigger).
Examples of useful automation:
- ⏰ Meet Memoir: Sending SMS with the text “I’m 10 minutes late” when the alarm clock is activated.
- 📍 Geozone: Notifying your spouse when you leave work.
- 🔋 Low charge: SMS call the second number if the battery is running out.
⚠️ Attention: Automation through SMS It only works when active. SIM-If the phone is in the "Airplane" mode or without a network, the messages will not be sent. For reliability, duplicate notifications via instant messengers (for example, Telegram Bot).
For advanced users, you can use Tasker or MacroDroid to create complex chains of action, like sending GPS coordinates once an hour if you're on a trip.
7.Security: How to protect your correspondence on Xiaomi
Communication on a smartphone can contain sensitive information, and Xiaomi has several ways to protect it:
1. Encrypting chats in messengers
- In Telegram: use secret chats (they are encrypted through the method).
2. Application lock-up
- Go to Settings → Applications → Blocking applications.
- Set a password or fingerprint to access messengers.
3. Hiding notices
- In the messenger notification settings, turn off “Show Content”** on the lock screen.
- Use Incognito Mode** in MIUI (swipe down the curtain → mask icon).
4. Backup
- For SMS: Communications → ⋮ → Settings → Backup (in Mi Cloud).
- For instant messengers: export chats manually (on WhatsApp: ⋮ → chat → Exports).
If you are selling or transferring a phone, you must:
- Delete your Google and Mi Accounts in your settings.
- Reset the device to factory settings (Settings → About Phone → Resetting).
- Extract. SIM-card and memory card (if any).