How to blacklist a number on Xiaomi smartphones: 5 proven ways

Why Xiaomi is Ignoring Unsolicited Calls (and How to Fix It)

Are you tired of intrusive calls from unknown numbers or spam from banks? The blacklist on Xiaomi is a built-in tool that automatically blocks calls from unwanted contacts. But many users do not even realize that the feature works not only for incoming calls, but also for SMS, and also has hidden settings in MIUI.

This article is a complete review of all ways to blacklist Xiaomi, including rare methods through engineering menus and third-party apps. We tested the instructions on the Redmi Note 12 Pro+, POCO X5 Pro and Xiaomi 13 Ultra with MIUI 14, but they are also relevant for older versions (starting with MIUI 10). If your phone behaves outside the box, there is a section at the end of the article that addresses typical problems.

Warning: Some methods (e.g., locking through ##4636##) may not work on all models, but the basic methods through Phone and Messages are guaranteed to work on 99% of Xiaomi, Redmi and POCO devices.

Method 1: Adding to a blacklist during a call

The fastest method is to lock the number directly during an incoming call, which is convenient when you get a call from a scammer or a collector and you don't want to keep in touch with the phone book.

How it works:

• 📞 During the incoming call, click the "Disclaim" button (red handset).
• 🔄 Immediately after that, a pop-up window will appear with the sentence “Add to the blacklist” – tap on it.
• ✅ The number will be automatically blocked without additional confirmation.

This works even on locked phones (if the screen is on), but the downside is that if you accidentally hit "Deflect" without locking, you'll have to use a different method.

💡

If the number keeps calling you after blocking, check the blacklist sync settings with your Mi Account account. Sometimes the lock is reset after the MIUI update.

Method 2: Blocking through a call log

If you miss a call or want to block a number after the fact, use a call log.This method is suitable for Xiaomi on any version of MIUI (including MIUI 12.5 Enhanced and later).

Step-by-step:

1. Open the phone application (pipe icon).
2. Go to the tab "Journal" (the icon of the clock at the bottom of the screen).
3. Find the number in the list and hold your finger on it for 2 seconds.
4. In the menu that appears, select “Black List” → “Add”.
5. Confirm the action by pressing “OK”.

On some models (such as the POCO F4 GT), the “Blacklist” item may be hidden behind the “More” button (three dots in the upper right corner).

The number disappeared from the call log|When you try to call, you hear the "busy" signal"|SMS This number doesn't come from|The lock notification appeared at the top of the screen.-->

Method 3: Manual Addition via Blacklist Settings

If you need to block a number that hasn't called yet (for example, on the advice of friends or from a spammer database), use the central blacklist menu, which gives you access to all blocked contacts and allows you to manage them.

Instructions:

1. Open the "Settings" (cog icon).
2. Go to the Appendix section → Phone. → Blacklist.
3. Click "Add" (the "+" icon in the upper right corner).
4. Choose the way to add: 📞 Contacts – if the number is saved in the phone book. 📝 Manually – to enter an arbitrary number. 📄 From the magazine - a selection of the latest calls.

Confirm the addition.

In the same menu, you can delete numbers from the blacklist or enable SMS blocking (the option “Block Messages”). On MIUI 14, the “Advanced Filtering” feature appeared here, which automatically blocks suspicious numbers on the Xiaomi database.

Method 4: Blocking through the Messages app

If you are not getting tired of calls, SMS-Spam (e.g. from banks or stores), the lock can be configured directly in the Messages app, which works independently of the blacklist on the Phone, meaning the number can only be blocked for the user. SMS.

How to do this:

• 📱 Open the Messages app (the envelope icon).
• 🔍 Find a dialog with an unwanted number and hold it.
• 🚫 In the menu that appears, select Add to the blacklist».
• ✅ Confirm the action.

Nana MIUI 13/14 In the settings of “Messages” appeared the option “Spam filter” (Settings) → Spam filters automatically sort suspicious ones. SMS However, for a complete lock, it is better to use manual blacklisting.

Method 5: Use of the Engineering Menu (for advanced)

If standard methods don’t work (for example, due to custom firmware or MIUI failure), you can try locking the number through an engineering menu, which is suitable for advanced users and requires caution.

Instructions:

1. Open the Phone app and enter the code: ##4636###
2. In the menu that appears, select “Phone Information” (or “Phone Information”).
3. Scroll down to the Blacklist block (may be called Blacklist).
4. Click Add and enter the number in international format (e.g. +79123456789).
5. Save the changes and restart the phone.

⚠️ Note: Not all Xiaomi models support this method. on some devices (e.g. Redmi) 10C) The engineering menu may not display the blacklist option, and it is also not recommended to change other options in this menu, this can lead to communication failures.

The solution to the problem: why the blacklist does not work

Sometimes, locking numbers on Xiaomi fails, and here are the typical reasons and ways to fix them:

• 🔄 Resetting settings: After the update MIUI The blacklist may be reset. Check its contents in Settings → Annexes → Phone. → Blacklist.
• 📵 Double lock: If the number is locked in both Phone and Messages, sometimes it conflicts.
• 🌐 Sync with Mi Account: If you are logged in to Xiaomi account on multiple devices, the blacklist may not sync correctly. → Xiaomi account → Synchronization → Blacklist.
• 🛠️ Cache Clearing: Go to Settings → Annexes → Application management → Phone. → Warehouse → Clear the cache.

⚠️ Warning: If the number passes after all the manipulations, check if there is a third-party application on the phone to block calls (for example, Truecaller or Call Blocker). MIUI.

💡

If the number is blocked but calls are still coming, try adding it to the blacklist through the Security app (Settings → Security → Blacklist).

FAQ: Frequent questions about the blacklist on Xiaomi