How to block the phone number Xiaomi Redmi Note 7: all ways

Spam protection and intrusive calls are a key feature of modern smartphones, and Xiaomi Redmi Note 7 is no exception. Owners of this device often face the need to block unwanted numbers, from advertising robots to former colleagues or random subscribers. Unlike the newer Redmi models, where the MIUI interface has undergone significant changes, Redmi Note 7 (released in 2019) runs on the version of MIUI 10/11/12, which affects the location of settings.

In this article, we will discuss all the current ways to lock numbers on the Redmi Note 7, from standard tools to bypassing operator restrictions. Particular attention will be paid to nuances that are not obvious to beginners: for example, why locking through the Phone application may not work for SMS, or how to restore the list of blocked contacts after resetting. If you are looking for a solution for another Xiaomi model (for example, Redmi Note 8 Pro or POCO X3), note that the algorithms may differ - at the end of the article there is an FAQ with a comparison of MIUI versions.

1. Locking the number through the standard application "Phone"

The fastest way is to use the built-in phone app (com.android.dialer), which works for incoming calls but doesn't block them. SMS (It needs a separate section in the settings. MIUI 10–12:

1. Open the phone app** (the phone icon).
2. Go to the Journal tab (watch icon in the bottom menu).
3. Find the number you want to lock and click on it to open the details.
4. In the upper right corner, tap three points (⋮) → Choose Block the number.
5. Confirm the action in the window that appears.

⚠️ Note: If the log does not have the number you need, add it to Contacts, then open the contact card. → ⋮ → Locking through the log only works for numbers that have already called you.

Have you added a number to your contacts (if not in the log) |

Make sure the number is not on the operator's blacklist (may conflict)|

Checked the lock on the second. SIM (If you use Dual, you use Dual. SIM)|

Save a backup copy of contacts (in case of reset)

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Once blocked, calls from this number will be automatically reset and the log will be marked "Blocked" to manage the list of blocked numbers:

1. Open Settings → Applications → Phone → Lock numbers.
2. Here you will see all the locked numbers and you can unlock them or add new ones manually.

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If the lock doesn’t work, check if you have a third-party call app (like Truecaller or Google Phone) that can intercept the call before the standard dialer.

2.Blocking through MIUI security settings

MIUI has a separate Security section where you can manage the blacklist centrally, which is suitable if you want to block the number for both calls and SMS:

1. Go to Settings → System and Device folder → Security.
2. Select Number Block (or Blacklist in some versions of MIUI).
3. Click Add a number and enter it manually or select from contacts/login.
4. Activate the switches to block Calls and Messages.

⚠️ Attention: B MIUI 10 Security may not be in the main settings, in which case, search by settings (the magnifying glass icon in the upper right corner) and enter the number lock request.

On the Redmi Note 7 with MIUI 10 Locking through Security may conflict with settings SIM-If you add a number to the blacklist, you still get calls, try to disable the service of "Antispam" from the operator (for example, MTS or Beeline).

3.Use of the Messages app to block SMS

If you are not getting calls but spam messages, you need to set the lock separately in the Messages app (com.android.messaging).

1. Open the Messages app** and find a dialog with an unwanted number.
2. Tap it on three points (⋮) top-right → Details.
3. Click Block (or Spam in some versions).
4. Confirm the action. Now, SMS from this number will be automatically deleted.

⚠️ Attention: Lockdown SMS In Messages, calls are not affected by the methods in the previous sections, and please note that some operators (e.g. Tele2) may send service calls. SMS with blocked numbers – they will not be filtered.

Calls from robots |

Promotional SMS|

Calls from unknown numbers |

Spam in messengers (WhatsApp, Viber)-->

4. Third-party applications for extended locking

Standard MIUI tools don’t always deal with mass spam or numbers with swapped IDs, and third-party apps can help:

• 📞 Truecaller detects spammers from a database and blocks them automatically.
• 🚫 Blacklist Plus – allows you to create mask lock rules (for example, all numbers with a code) +7999***).
• 🔒 Calls Blacklist – supports locking on schedule (for example, at night).
• 📊 SMS Blocker – specializes in filtering spam messages with keywords.

Before installing, check the application permissions in Settings → Applications → Permissions. Some programs (such as Truecaller) may conflict with the standard MIUI dialer, so after installation:

1. Go to Settings → Applications → Default Applications.
2. Select Phone and install a third-party app as the default dialer.

5. Operator-level lock: pros and cons

All Russian operators provide services to block unwanted numbers, but this method has nuances:

⚠️ Attention: Operator-level locking is not synchronized with the smartphone blacklist. MIUI, It will remain locked from the operator (and vice versa), and operators will not block numbers with a changed Caller. ID (For example, "Sberbank" or "Gift Card»).

To disable the blocking service from the operator:

• 📱 For MTS: send SMS 770 by 111.
• 📱 For Beeline: dial *110*770#.
• 📱 For MegaFon: *130*770#.

6. How to unlock a number or restore a blacklist

If you accidentally blocked the number or lost the list after resetting the settings, you can restore it in several ways:

Method 1: Through phone settings

1. Go to Settings → Applications → Phone → Lock numbers.
2. Find the number in the list and swipe it left or click Delete.

Method 2: Through a backup of MIUI

If you have previously created a backup through Settings → Additional → Backup:

1. Restore data from the backup by selecting Settings and Applications.
2. The blacklist is stored in the file com.android.providers.contacts – its restoration will return all blocked numbers.

⚠️ Warning: When you recover from the backup, all current phone settings will be replaced with saved ones. If you blocked numbers after you backed up, they will disappear.

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Backup blacklists are automatically created only when manual backup is done in MIUI. Cloud services (e.g. Mi Cloud) do not save locked numbers!

Method 3: Through the blacklist.db file (for advanced)

The list of blocked numbers is stored in the database along the way:

/data/data/com.android.providers.contacts/databases/contacts2.db

To extract or edit it:

1. Get root access or use ADB.
2. Copy the file on your PC and open it through SQLite Browser.
3. The numbers are stored in the blacklist table.

🔹 Important: Editing system files without a backup can cause the Contacts app to crash.If you're not sure about your skills, use standard methods.

FAQ: Frequent questions about locking numbers on Redmi Note 7

If your question is not covered in the FAQ, check the firmware relevance: on the Redmi Note 7 after MIUI 12.5, the locking algorithms have changed. For accurate diagnosis, specify the MIUI version in the comments (Settings → About Phone → MIUI version).