How to change the number SMS-center on Xiaomi smartphones: full instructions with nuances

Change of number SMS-The center on Xiaomi smartphones is a procedure that may be required when changing operators, roaming, or resolving messaging problems, and although most users never experience this setup, in some cases, it becomes critical to adjust it. For example, if the messages leave, but do not reach the recipient, or a notification of an error of sending arrives, the fault may be the wrong number of the center.

In this article, we will discuss how to check the current number. SMS-The center on Xiaomi, Redmi and POCO, How to change it through standard settings and engineering menus, and what pitfalls can occur. MIUI different versions, from MIUI 12 to MIUI 14 and later: If you use a smartphone with third-party firmware (like LineageOS or Pixel Experience), the instruction is also applicable, but additional steps may be required.

Before you start making changes, make sure the problem is really related to the problem. SMS-Often, delays or errors in sending messages are caused by a bad network signal, operator lockdown or limitations in phone settings. SMS It's from another device on the same carrier, and if it gets a message, it's a problem on your smartphone.

What is it? SMS-The center and why to change it

SMS-centre SMSC, Short Message Service Center is the mobile operator server that all your text messages go through. SMS, It gets to that server first, and it gets to the addressee from there, and if the center number is incorrect or the operator's server has changed the address, the messages can be sent to the addressee:

• 📤 Not to send (message not sent) or endless sending icon).
• ⏳ Stay for hours or days.
• 🔄 Duplicate (multiple copies of one message are received).
• 🚫 Blocking by the operator due to the number discrepancy to the center.

Default number SMS-The center is automatically installed when installed. SIM-However, in some cases, manual adjustment is required:

• 🌍 Roaming: when traveling abroad, the local operator can use another SMSC.
• 🔄 Change of operator without replacement SIM-cards (for example, when transferring the number).
• 📡 Network problems: the operator could update the number of the center, but the smartphone did not receive new settings.
• 🛠️ Castom firmware: after installing unofficial software, the settings are reset.

It is important to understand that the wrong number SMSC It does not block calls or mobile internet – it only affects the internet. SMS. If you don’t have other communication features, the problem lies in another (for example, settings). APN or malfunction SIM-map).

How to find the current number of the SMS-center on Xiaomi

Before changing the settings, check which number SMSC It's now in use, and you can do it in a number of ways, like a standard messaging menu, an engineering menu, or a computer. USSD-Let's look at each option.

Method 1: Through the "Messages" app

The easiest method is to use the built-in Messages app:

1. Open the Messages app (the envelope icon).
2. Click on the three dots in the upper right corner (menu) → Settings.
3. Select Extra or Advanced Settings (depending on the MIUI version).
4. Find the center. SMS or Number SMS-centre.

If the item is missing, then your version MIUI It hides that setting, so use alternative methods.

Method 2: Through the Engineering Menu (code ##4636##)

The engineering menu allows you to access hidden Android settings, including information about the SMSC:

1. Open the Phone app and enter the combination: ##4636##.
2. In the menu that opens, select Phone Information (or Phone Information).
3. Scroll down to the block. SMSC — This will show the current number.

On some firmware, this section may be called SMS Service Center or be hidden. If the combination doesn't work, try the alternative code: ##7678##.

Method 3: USSD-operator

Some operators provide USSD-command SMS. For example:

• 📱 MTS: *111*0887# (challenge) → number SMSC.
• 📱 Beeline: *110*10# → request SMS.
• 📱 MegaFon: *105*00# → Information about services (sometimes including: SMSC).
• 📱 Tele2: *155*1# → check-up.

Check the current command on your operator’s website – they may change.

💡

If the engineering menu doesn't open, try typing the code through the Phone app in dial mode, not through search. MIUI Access to hidden menus is blocked by default.

Where to get the right number SMS-center

If you find out that the current number SMSC It's not true, it needs to be replaced with the current number:

Official sources

• 🌐 Operator's website: usually number SMSC It's listed under "Phone settings" or "Help." For example: MTS: +79160,000,000 for Moscow: +79030009000: +79260000000. Tele2: +79500000000.
• 📄 Contract or launch package SIM-Cards: Sometimes the number is printed on a plastic holder.
• 📞 Support: Call the operator (usually 0611 or 611) and request an up-to-date call. SMSC.

Alternative means

If official data is not available, try:

• 🔍 Search the Internet: enter a request type "number" SMS-[Your operator] [your region]".
• 📱 Another phone: check the number SMSC on the same operator's operating device.
• 🛠️ Forums: at 4PDA Xiaomi Community often puts up the latest settings for different regions.

Attention, number. SMS-The center may differ depending on the region, for example, MTS for Moscow and St. Petersburg are different. SMSC. Find a number for your city.

💡

Always use the number. SMS-International format (C) +7 or +If you enter a number without a country code, messages may not be sent to roaming.

How to change the number SMS-Center on Xiaomi: step-by-step instructions

Now let's get to the main thing - changing the number. SMSC. The method depends on the version MIUI And the smartphone models, and here's a generic method that works on most Xiaomi, Redmi and other devices. POCO.

Method 1: Through standard settings (MIUI 12–14)

If your firmware has access to settings SMS-centre:

1. Open the Messages app.
2. Click on the three dots in the upper right corner → Settings.
3. Select Additional → Centre SMS.
4. Enter a new number in the format +7XXXXXXXXXX (for example, +79160,000,000 for MTS in Moscow).
5. Click Update or Save.

Method 2: Through the engineering menu (if there is no item in the settings)

If the standard method does not work, use the engineering menu:

Get the right number. SMS-center

Check the balance SIM-Cards (at some rates) SMS lock-in)

Close all applications except for the phone

Connect to the network (better through Wi-Fi, so as not to lose communication)-->

1. Open the Phone app and type in ##4636##.
2. In the menu, select Phone Information.
3. Scroll down to the section. SMSC and click on the current number.
4. Enter a new number in the format +[country code][number] (e.g, +79030009000 for Beeline).
5. Press Update.
6. Reboot your phone to make the changes take effect.

Method 3: Through the Settings app (for older versions) MIUI)

Nana MIUI 10–11 paths may be different:

1. Open the Settings. → SIM-maps and mobile networks.
2. Choose yours. SIM-map → Settings SMS.
3. Find the Message Center and enter a new number.

Attention, if after the change of number SMSC If it's reset or not saved, it could mean that the operator is blocking the manual settings:

⚠️ Note: Some operators (e.g, Tele2 Roaming Rooming: Automatically Rewrite the Number SMSC Whenever you turn on your phone, to avoid this, turn off automatic settings from the Settings menu after you change. → SIM-maps and mobile networks → Additionally. → Auto-tuning.

What to do if the number SMS-center

Sometimes users are faced with the fact that after changing the number SMSC It's reset to standard or not saved at all:

Reason 1: Operator blocks manual settings

Some operators (especially virtual ones like Tinkoff Mobile or SberMobile) force you to update your settings when you connect to the network.

• 📵 Turn off automatic settings in Settings → SIM-maps and mobile networks → Auto-tuning.
• 🔄 Use attachment apps SMSC, for example SMSC Set (available on Google Play).
• 📡 Change the network with 4G on 2G (customized SIM-maps – sometimes this helps to save settings.

Reason 2: Castom firmware or root rights

If you use unofficial software (such as LineageOS or Pixel Experience), settings SMS It can work incorrectly:

• 🛠️ Update the firmware to the latest version.
• 🔧 Install the Magisk module for fixation SMSC (for example, SMSC Fix).
• 📲 Use an alternative application for SMS, e.g. Textra or QKSMS, where to manually specify SMSC.

Reason 3: Hardware problems

If none of the methods helps, there may be problems with:

• 📶 SIM-Map: Try inserting it into another phone and checking your settings.
• 📱 Smartphone modem: if the problem is only with SMS, a calls and internet are working, possibly a faulty communication module.

Features for different Xiaomi models

The change SMSC It may vary depending on the model and version. MIUI. Below are the nuances for popular devices.

Xiaomi MIUI 14 (2023–2026)

On new firmware, the path to settings SMS-The center is often hidden:

1. Open Settings → Applications → Application Management.
2. Find Messages and click Storage → Memory management → Clear the data (this will reset the application settings).
3. After restarting Messages, a Center point may appear SMS.

Redmi Note 10/11/12 and POCO X3/X4/X5

These models often only use the method through the engineering menu (#4636##).

• Try an alternative combination: ##7678###.
• Install the app MTK Engineering Mode (for devices running a MediaTek processor).

Old models (Redmi) 4X, Mi A1, Mi 5)

On devices with MIUI 9-10 or Android One (like Mi) A1) path:

1. Open the Settings. → Additionally. → Settings SMS.
2. Select the Message Center and enter a new number.

If there is no item, use the app. SMS Backup & Restore – It has an editing function SMSC.

Devices with global and Chinese firmware

On the Chinese versions. MIUI (without Google Play, the path to settings may be different:

• Install Google Messages through an alternative store (such as APKMirror).
• Use it. ADB-PC: Adb shell content insert --uri content://telephony/carriers/smsc --bind address:<number SMSC> Replace. <number SMSC> on the relevant (e.g, +79160000000).

Risks and Warnings in Changing SMS-centre

Although the procedure for modification SMSC It seems simple, it's fraught with a few pitfalls:

1. Message loss

If you enter the wrong number, all sent SMS They won't get to the destination, but they won't come back to you with an error, and you just won't know that the message hasn't been delivered:

• 📌 Always check the number. SMSC operator before the change.
• 📱 Send a test. SMS on another phone after changing the settings.

2.Roaming problems

In roaming, some operators use separate numbers SMSC. If you do not update the settings, messages:

• They can be charged as international (even if the addressee is in Russia).
• They may not be available due to a foreign operator blocking them.

Solution: before traveling, check with your operator number SMSC roaming.

3. Conflict with the annexes

Some instant messengers (such as WhatsApp or Viber) and banking applications use the app. SMS to confirm the action, if SMSC wrongly:

• 🔐 No confirmation codes (two-factor authentication) will come).
• 💳 You won't get paid through SMS (for example parking or transfers).

Solution: Before the change SMSC Check if they are not attached to SMS service-worthy.

⚠️ Note: If you are using Xiaomi with two SIM-card number SMS-The center is set up separately for each of them. SMSC for SIM, send-message.

Alternative methods of sending SMS, if SMSC doesn't work

If after all the manipulations SMS Not yet available, consider alternatives:

Annexes for SMS

Some third-party messengers allow you to bypass problems with SMSC:

• 📲 Textra SMS: hand-in SMSC and has extended settings.
• 📲 QKSMS: Open source, even working on custom firmware.
• 📲 Google Messages: Automatically tightens operator settings.

2. Online services

If SMS critical (for example, for work), use web services:

• 🌐 SMS.ru or SMS-assistent.ru: sending messages via the Internet.
• 🌐 Personal account of the operator: many providers allow you to send SMS site.

3. Supported messengers SMS

Some applications are able to send SMS via the Internet, bypassing SMSC:

• 💬 WhatsApp (only for some operators).
• 💬 Telegram (via bot) @SMSBot, if the operator supports API).

On Xiaomi devices with firmware MIUI 13+ newer function of change SMSC It can be blocked at the system level, and the only way out is to use third-party apps or contact the operator's support team to force you to send settings.

FAQ: Frequent questions on change SMS-center