How to permanently block a phone number on Xiaomi: all ways in 2026

Why it’s important to block numbers on Xiaomi

Spam calls, annoying collectors or former acquaintances — the reasons for blocking a number on Xiaomi can be very different. But few people know that the standard lock through the call menu does not always work, for example, if a subscriber uses a hidden number or calls from another. SIM-Your blacklist may be useless on some of the firmware. MIUI The lock is reset after the system update.

In this article, we’ll break down 5 proven ways, including hidden MIUI features that work even on the newest Redmi Note 13, POCO X6 and Xiaomi 14 models. You’ll learn how to lock not only individual numbers, but entire ranges (for example, all bank or delivery numbers), and what to do if the lock doesn’t work after resetting.

Particular attention will be paid to the hidden method through the engineering menu, which allows you to block numbers at the modem level - this is the only way to stop calls from swapped numbers (spoofing), which bypass the standard blacklists.

Method 1: Standard lock through call log

The simplest method, which works on all Xiaomi smartphones with MIUI 12 firmware and later, is suitable for blocking specific numbers, but does not protect against spammers who constantly change numbers.

Instructions:

• 📱 Open the phone application (pipe icon)
• 🔍 Find the number in the call log you want to lock and tap it.
• ⚙️ In the upper right corner, press three dots. → Lock the room.
• ✅ Confirm the action in the pop-up window

Where to find blocked numbers:

1. Go to Settings → Applications → Phone → Lock numbers
2. Here you will see a list of all blocked contacts.
3. To unlock the number, swipe it left and press Delete

Call log open.

Number found in history

Pressed three dots in upper right corner

Selected "Block the number"

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⚠️ Note: Some models (e.g. Redmi) 10C) post-update MIUI 14 standard lock may be reset. If it has occurred, use method 3 or 4 of this article.

Method 2: Locking through MIUI security settings

This method allows you to block not only the numbers, but also SMS-Spamming Messages Works on All Xiaomi Devices, Including POCO F5 Xiaomi 13T.

Step-by-step:

1. Open the Settings. → PapaSSWORD safety
2. Select Number Lock (some firmwares call it Blacklist)
3. Click Add to the blacklist → Phone number
4. Enter the number in international format (for example, +79123456789) or select from contacts
5. Activate the SMS Block Messages Switch if you want to ban SMS.

Advantages of this method:

• 🔒 Blocks calls, and SMS simultaneously
• 📊 Keeps statistics of blocked calls
• 🔄 It works even after the phone restarts.

Standard through call log.

Through security settings

Applications from the operator

Third-party annexes

I don't block numbers.-->

Method 3: Blocking through the Engineering Menu (for the experienced)

This is the most reliable way to block numbers at the modem level, suitable for combating spammers who use swapping numbers (spoofing). Works on all Xiaomi devices with Qualcomm processors (for example, Redmi Note 11 Pro+, POCO F4 GT).

Warning: Mistakes in the engineering menu can disrupt the network!

Instructions:

1. Open the phone app and enter the combination: ##4636##
2. Select Phone Information (or Phone Information)
3. Scroll down to the Set Preferred Network Type block
4. Click on three dots in the upper right corner →
5. Enter the number in the Block number field in the format +79123456789 and press Add

⚠️ Attention: The lock through the engineering menu does not have a graphical interface to control. To remove the number from the blacklist, you will have to enter the command adb shell settings delete global settings. blocked_numbers computer.

Method 4: Use of applications from operators

Mobile operators offer their own spam blocking solutions, which are integrated with the operator’s network and can block numbers before the signal reaches your phone.

Comparison of annexes:

How to configure the lock in the operator’s application (on the example of MTS):

• 📥 Install the app from Google Play (link above)
• 🔑 Register or log in via phone number
• 🛡️ Go to the section Protection against spam
• 📵 Enable the option of blocking unwanted calls
• ➕ Add numbers manually or select from the categories offered (banks, collectors, robots)

💡

If you frequently receive calls from unknown numbers, turn on the operator's application "Perform Numbers" which shows the name of the organization (for example, "Sberbank" or "Business Lines") before answering the call.

Method 5: Third-Party Applications for Blocking

If standard methods don't work, you can use specialized applications, and they offer advanced features: blocking keywords in SMS, creating whitelists, analyzing incoming calls.

Top.-3 apps:

1. Truecaller is the largest spammer database (over 300 million numbers) and can even recognize swapped numbers.
2. Hiya - blocks robobrae and scammers, there is a function of reverse search number.
3. Call Blocker is a simple blocker with the ability to export / import blacklists.

How to set up Truecaller on Xiaomi:

• 📥 Install the application and complete the registration
• 🔧 Go to Settings. → Lockdown
• 📵 Turn on the options: 🔘 Block spam 🔘 Block hidden numbers 🔘 Block numbers not from the phone book
• 🔄 In the section Additional, activate Integration with your phone so that Truecaller becomes the default call app

💡

Third-party applications consume an extra battery and may conflict with MIUI system services. If communication problems arise after installation, check the permissions in Settings → Applications → Permissions Management.

What to do if the lock is not working

Sometimes even after being blacklisted, calls keep coming in, and here are the main reasons and solutions:

If none of the methods worked, try resetting your network settings:

1. Go to Settings. → SIM-maps and mobile networks
2. Select Network Settings Reset (on some models: Settings → System → Settings Reset → Reset Wi-Fi, Mobile Network and Bluetooth)
3. Confirm the action and restart the phone

⚠️ Note: Resetting network settings will delete all saved Wi-Fi passwords and settings APN. After the procedure, re-activation may be required. SIM-map USSD-command (e.g. *111# for MTS).

FAQ: Frequent questions about locking numbers on Xiaomi