How to permanently block a subscriber on Xiaomi: all ways of 2026

Introduction: Why to block numbers on Xiaomi

Spam calls, intrusive collectors, or former acquaintances can be all kinds of reasons to block a number on Xiaomi. Unlike the iPhone, where the lock feature is hidden in the depths of iOS, MIUI firmware offers several built-in tools for this. But not everyone knows that there are other methods besides the standard blacklist in the Phone app, from filtering SMS to using MIUI Security.

In this article, we will analyze 5 working ways to block subscribers on Xiaomi, Redmi smartphones, POCO and Black Shark (relevant to the MIUI We will focus on the nuances of what to do if the number still breaks through, how to block hidden calls and whether you can return access to the contact after blocking. MIUI Getting a full-fledged spam blocker and how to get around them.

Method 1: Blocking through the "Phone" application

The most obvious and quickest method is to use the built-in Phone app, which works on all Xiaomi models, including the Redmi Note 12, POCO X5 and even the old devices on MIUI 11.The main advantage is that the lock is valid for both calls and on the phone. SMS.

Instructions:

1. Open the Phone app (the tube icon on the home screen).
2. Go to the Journal section and find the number you want to block.
3. Slip the number, then select ⋮ → Lock down.
4. Confirm the action in the pop-up window.

To manage the list of blocked numbers:

• 📱 Go to the phone. → ⋮ → Settings → Number locking.
• 🔍 This will show all the blocked contacts, so you can add a new number manually or delete the old one.
• ⚙️ Enable the option to Block Unknown Numbers if you want to weed out spam from unidentified lines.

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If calls still pass after blocking, check if the phone has a third-party call app (like Truecaller or Google Phone) that can intercept calls before the system locks.

Method 2: Blocking through MIUI Security

The Security app (or MIUI Security on global firmware) offers advanced lock settings, including keyword filtering in SMS. This method is useful if the spammer changes numbers but sends messages with the same text (for example, "You won a prize!").

How to set up:

1. Open Security (Shield icon).
2. Go to Lockdown. → Blacklist.
3. Click + and select Add a number or Add a keyword.
4. For keywords, specify phrases from spam SMS (for example, "credit", "winning").

Features of the method:

• 🛡️ Blocks not only numbers, but also messages with certain content.
• 📊 It also provides statistics on blocked calls and SMS (available in the Lockdown Journal).
• ⚠️ Does not work with messengers (Viber, WhatsApp, Telegram).

Method 3: Blocking through settings SIM-map

A little-known method is SIM-level locking, which is suitable if you use the services of an operator (MTS, Beeline, Tele2, MegaFon), which supports the Blacklist function. The advantage is that the lock will work even if you insert the SIM into another phone.

How to activate:

1. Open the SIM Cards and Mobile Networks app (or go to Settings) → SIM-maps and mobile networks).
2. Choose yours. SIM-card, then operator services → Blacklist.
3. Add the number manually or select from the call log.
4. Save the changes (may require sending) USSD-teams, for example, *110*777# for MTS).

⚠️ Attention: The service is paid for by some operators (for example, Beeline is worth it). ~3 rubles / day) Also, the lock can be dropped when changing the tariff or reissue SIM-map.

Check the support of your operator:

• 📶 MTS: *111*777# → follow-up.
• 📶 Beeline: *110*777# through the personal account.
• 📶 MegaFon: *130*1# → section “Blacklist".
• 📶 Television2: *220*1# → antispam".

Method 4: Using Third-Party Applications

If the built-in Xiaomi tools fail (for example, the spammer uses different numbers or hides his ID), third-party software will help.

• 📞 Truecaller – detects spammers on the database, blocks calls and SMS. Disadvantages: Requires access to contacts.
• 🛡️ Kaspersky Who Calls -- analyzes incoming calls, blocks scammers.
• 🚫 Blacklist Plus – flexible lock settings (time, geolocation, keywords).
• 🔍 Hiya – specializes in blocking robbrae and telemarketing.

How to set up Truecaller (for example):

1. Download the app from Google Play.
2. Register (a telephone number will be required).
3. In the Block section, add the number manually or enable automatic spam blocking.
4. Activate the option to Block Hidden Numbers in the settings.

⚠️ Note: Apps may consume additional battery and require permission to access call logs. Check reviews and ratings on Google Play before installing.

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The side of the application is effective against spam, but can conflict with the built-in MIUI functions. If after installing Truecaller system locks stop working, disable duplicate functions in the application settings.

Method 5: Blocking in messengers (WhatsApp, Telegram, Viber)

If you're not only getting hit by calls, but also by messaging, you have to set the lock separately in each application, and unlike system lock, it doesn't stop the user from calling you over the regular network.

WhatsApp:

1. Open the contact chat.
2. Tap by name at the top. → Lock down.
3. Confirm the action.

Telegram:

1. Open the user profile.
2. Press. ⋮ → Block it.
3. Choose Delete and Block if you want to erase your correspondence history.

Viber:

1. In the chat, tap on the interlocutor's avatar.
2. Choose More. → Lock down.
3. Activate Hide Chat if you don’t want to see old messages.

Important nuances:

• 🔄 In Telegram, a blocked user will not see your online status, but will be able to read messages in shared chats.
• 📱 WhatsApp lock removes contact from your list (but not from your phone book).
• 🔒 Viber can block not only users, but also groups.

What to do if the lock is not working

Sometimes even after you add a number to the blacklist, the calls keep coming in.

If the problem persists:

1. Check if third-party applications have administrator rights (e.g. Settings → Applications → Special Access → Device Administrators).
2. Update MIUI to the latest version (old firmware had lock bugs).
3. Perform a reset of network settings: Settings → SIM-maps and mobile networks → Resetting network settings.

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If the spammer uses IP-In the case of telephony, the system lock may not work, and only operator-level locks or specialized software like Hiya will help.

FAQ: Frequent questions about locking on Xiaomi