How to block a phone number on Xiaomi: 2026

Spam calls, intrusive collectors, or ex-friends who don’t want to leave you alone are the problems faced by every second Xiaomi owner. Fortunately, modern MIUI-based smartphones offer several built-in tools to block unwanted numbers, but not everyone knows how to use them correctly, especially if it comes to new firmware versions or specific models like the POCO F5 or Redmi Note 12 Pro+.

In this article, we will discuss 7 Proven ways to block a number on Xiaomi, including hidden features MIUI 14/15, You will learn how to block not only individual numbers, but also entire ranges (for example, all calls with a code). +375), And what to do if the lock doesn't work, and we'll focus on the nuances of dual-enabled devices. SIM-Maps and models without Google services.

Important: the methods from this manual are relevant for all modern smartphones Xiaomi, Redmi, POCO and Black Shark based on Android 12-14 with MIUI 13-15 firmware. If your device runs on an older version, some menu items may differ - we will warn about this separately.

1. Blocking through the standard application "Phone"

The easiest and fastest way is to use the built-in Phone app (the handset icon), which works on all Xiaomi devices without any additional settings and requires no superuser rights.

1. Open the Phone app and go to the Log tab (the icon of the clock at the bottom of the screen).
2. Find the number you want to block and click on it to open the details of the call.
3. In the upper right corner, tap on ⋮ (three dots) and select Block the number.
4. Confirm the action by clicking Block in the window that appears.

After that, the number will be added to the blacklist, and calls / messages from it will no longer bother you. To check the list of blocked contacts, go to Settings → Applications → Phone → Number Lock.

The number appeared on the list of blocked|Call from this number does not pass (test)|SMS is also blocked (if necessary)|Blocking notifications are disabled (optional)-->

Limitations of the method:

• 📵 Do not block calls from hidden numbers (defined as Unknown or Private).
• 🔄 If the caller uses different numbers (for example, call centers), you will have to block each individually.
• 📱 On some models (for example, Xiaomi 13 Ultra) lock through the log may not be saved after the reboot – in this case, use the method. №2.

2 Manual addition to the blacklist through MIUI settings

If you want to block a number that hasn’t called yet (e.g., from a SMS or messenger), or if you want a more secure lock, use MIUI system settings. This method is guaranteed to work on all devices, including the POCO X5 Pro and Redmi K60.

Instructions:

1. Open the settings (cog icon).
2. Go to the Appendix section → Phone. → Number locking.
3. Click Add (+ icon in upper right corner).
4. Enter the number manually or select from Contacts/Journal.
5. Confirm the addition.

In the same menu you can configure additional parameters:

• 🔕 Block Unknown Numbers – Turn on this switch to automatically screen out calls from hidden numbers.
• 📵 Block SMS – a separate option for blocking messages (online with blocking calls by default).
• 🔔 Lock notifications – if enabled, the phone will show a notification of a blocked call (useful for tracking spam).

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If you block the number of the operator (for example, +7495xxx for MTS), add it to the blacklist without spaces and dashes - so the system more accurately recognizes incoming calls.

3. Blocking through the operator (MTS, Beeline, MegaFon, Tele2)

Xiaomi’s built-in tools only block calls at the phone level. If you need to completely cut off a number at the network level (for example, so that it can not even reach from another device), contact your mobile operator.

Important: operator-level locking is not a substitute, but a complement to locking on your phone, for example, if you lock the number and in the phone. MIUI, and the operator, the call will not pass even if the caller uses another phone or SIM-map.

⚠️ Note: Some operators (for example, MegaFon) have a lock through the USSD-The team may be reset after replacement SIM-To avoid this, use the personal account on the operator's website.

4.Use of third-party applications to block

If Xiaomi’s built-in tools aren’t enough (like you need to block entire regions or automatically filter spam), install a dedicated app. We tested 5 popular solutions and picked the best ones for MIUI:

• 🛡️ Truecaller detects spam numbers from the database, blocks SMS and calls.
• 📵 Blacklist Plus – supports mask locking (for example, all numbers with a code) +375 Plus: It works without the internet.
• 🤖 Should I Answer? analyzes real-time numbers and warns about scammers. MIUI system-application.

How to set up Truecaller on Xiaomi:

1. Download the app from Google Play (or AppGallery if you have Huawei Services).
2. Register with your phone number.
3. In the application settings, enable options: Block spam → Automatic Number Identification → Always Integration with your phone → Allow

Settings → Applications → Phone → Blocking numbers

Truecaller

⚠️ Note: Apps like Truecaller may conflict with built-in locking MIUI, If they have call management rights, if the lock system settings stop working after installation, disable duplicate functions in the third-party app.

Built-in settings MIUI|Truecaller|Blacklist Plus|Other|I don't use it.-->

5. Blocking of hidden and unknown numbers

One of the most annoying types of spam is calls from hidden numbers (shown as Unknown, Private or Anonymous) and MIUI has a separate setting for such cases, but it is hidden deep in the menu.

How to enable the blocking of hidden numbers:

1. Open Settings → Applications → Phone → Lock numbers.
2. Activate the switch to Lock Unknown Numbers.
3. (Optional) Click Extra and select how to handle these calls: Reject - the call is reset immediately. Redirect to voicemail - the caller will hear the answering machine.

On firmware devices MIUI 14 and newer, the hidden number lock only works for SIM-The card is installed in slot 1. if you use two SIM-cards, move the main slot to the first slot or block numbers through the operator.

6. Blocking SMS and messages in messengers

Calls are not the only problem; spam messages can come via SMS or messengers (WhatsApp, Telegram, Viber), MIUI has separate settings to block SMS, and for instant messengers you will have to configure each separately.

Blocking SMS in MIUI:

1. Open the Messages app.
2. Find a spam message, click on it and hold your finger to make the context menu appear.
3. Choose Block. → Confirm.

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The locking in messengers only works inside the application, and if the contact textes you or calls you, these actions will not be blocked, they need separate settings in MIUI or from the operator.

7 Advanced Methods: ADB and Third-Party Firmware

If you are a user and ready to experiment, you can use it. ADB-commands or custom firmware for extended locking. These methods are suitable for devices with unlocked bootloader (for example, POCO F3 or Redmi K40 After unlocking through Mi Unlock).

Blocking through ADB:

1. Connect your phone to your PC and enable USB Debugging (Settings → About Phone → MIUI Version → 7 times, then Additional → For Developers → USB Debugging).
2. Open the command line on your PC and type in: adb shell content insert --uri content://call_log/calls --bind number:s:"+79123456789" --bind type:i:3 (substitute +79123456789 room-to-room).
3. To block all unknown numbers: adb shell settings put global block_unknown_callers 1

Custom firmware (such as LineageOS or Pixel Experience):

• 🔧 Allow you to install applications for blocking with extended rights (for example, Call Blocker with access to system systems) API).
• ⚠️ Cons: the installation of custom firmware removes the warranty and can lead to unstable operation of the communication module.

⚠️ Attention: Use ADB-Number lock commands may conflict with built-in functions MIUI. Before experimenting, back up the data through Settings → Additionally. → Backup and reset.

FAQ: Frequent questions about locking numbers on Xiaomi