If you start receiving intrusive calls from spammers, collectors or just unwanted people, the blacklist on the Xiaomi Redmi Note 7 will be your salvation. However, many users face the problem: the contact lock feature is hidden in an unobvious way, and in some MIUI firmware, its location has changed with updates. In this article, we will examine all possible ways to find a blacklist on your device, from standard settings to hidden menus.
It is important to understand that on the Redmi Note 7 (codename lavender), the blacklist can work differently depending on the version. MIUI (Global, Chinese, European and installed dialer (standard or Google Phone) We will look at options for all cases, including situations where the lock fails to work. SIM-You will also learn how to check if the number is blocked, and what to do if calls continue to arrive.
Standard method: blacklist in the application "Phone"
The most obvious way is through the built-in Phone (dialler) app. On the Redmi Note 7 with the original MIUI firmware, the algorithm is as follows:
- Open the Phone app (the handset icon on the home screen or in the app menu).
- Put three points on it (⋮) in the upper right corner or swipe left to open the side menu.
- Select the Black List (on some versions – Block numbers).
- Click Add (+) and select the contact from the list or enter the number manually.
If the Blacklist item is not on the menu, you have a modified firmware or a third-party dialer (such as Truecaller) installed, in which case move to the next section.
Make sure the number is saved in the contacts (if you block it from the list)
Check the version of MIUI in Settings → About the phone
Turn off the VPN (it may interfere with the operation of the lock)
Restart your phone if the blacklist does not open.-->
Alternative path: through security settings
On some versions of MIUI (especially Chinese ones), the blacklist is moved to the security section.
- Go to Settings → Applications → Permissions → Lock numbers.
- Or try the path: Settings → System and device → Additional → Blacklist.
- If these items are not, use the search by settings (magnifying glass at the top) and enter the request blacklist.
On the Redmi Note 7 with MIUI 12 and higher, you may need to activate the feature via the security menu:
- 🔒 Settings → Security → Lockdown and protection → Blacklist
- 📱 If no item, update the Security app via Play Market
- 🔄 After the update, restart the phone.
MIUI Global Stable
MIUI China Stable
MIUI Europe (xiaomi.eu)
Custom firmware (LineageOS, Pixel Experience, etc.)
I don't know.-->
Blocking Problems: Why the Blacklist Doesn't Work
Even after adding a number to the blacklist, calls can continue to arrive.
| Problem. | Reason. | Decision |
|---|---|---|
| Calls pass, but without sound. | Quiet mode function for blocked | Turn off in the dialer settings No sound for blocked |
| SMS from the blocked number comes | The lock only works for calls. | Use third-party applications (such as SMS Block) |
| The number is not locked on SIM-map | The operator ignores the system lock | Block the number through USSD-Operator command (e.g. *111# for MTS) |
| Blacklist resets after reboot | Misfunction of MIUI | Clear the cache of the phone application in the settings |
⚠️ Attention: Redmi Note 7 with two SIM-The blacklist can work separately for each card. SIM dialer menu: Telephone → Settings → SIM-map → Locking down calls.
Hidden functions: how to block the number through USSD-code
If the system lock does not work, you can use the USSD-It works even on unofficial firmware:
- 📞 MTS: Dial it up *111*09# → select "Blacklist" → add a number
- 📱 Beeline: *110*711# → Follow the instructions of the voice menu
- 🌐 Megaphone: *130# → "Services" → "Blacklist"
- 🔄 Television2: *220*1# → "Number locking"
The advantage of this method is that the lock works at the operator level, so calls will not come even when changing the phone.
How to check if the number is blocked through the USSD?
Third-party applications to block calls
If the built-in Redmi Note 7 is not satisfied, consider alternative applications. MIUI:
- 🛡️ Truecaller – blocks spam and database scams (requires registration)
- 🔇 Call Blocker – a simple blocker with a log of blocked calls
- 📵 Should I Answer? – Real-time analysis of numbers
- 🔒 Blacklist Plus – supports blocking by keywords in SMS
When using third-party applications:
- Provide all the permissions requested (access to calls, contacts, SMS).
- Add the application to the autoload (in MIUI: Settings → Applications → Autorun).
- Turn off battery optimization for the application (Settings → Battery → Battery Optimization).
⚠️ Note: Some locking applications (such as Truecaller) may conflict with the built-in dialer MIUI. If after installation calls stopped working, reset the settings of the Phone application in Settings → Annexes → Phone. → Warehouse → Drop it.
How to export and import a blacklist
If you're changing your phone or resetting your settings, it's helpful to keep a list of locked numbers. On the Redmi Note 7, there are two ways to do this:
Method 1: Through MIUI backup
- Go to Settings → Additional → Backup and Reset.
- Select Local Backup and select Application Settings (includes a blacklist).
- After resetting, restore the data from this copy.
Method 2: Manually through system files
The blacklist is stored in the Dialer database file to copy:
- Connect your phone to your PC and enable debugging via USB (Settings → About Phone → MIUI Version → 7 times tap the version).
- Use ADB or root-access file manager to copy the file: adb pull /data/data/com.android.providers.contacts/databases/contacts2.db
- To recover, return the file back after resetting.
Without root rights, this method won't work, and for non-technical users, it's easier to export contacts marked "locked" in the name.
💡
If you change phones frequently, keep a separate list of blocked numbers in Google Contacts with the tag "Blocked." When synced on a new device, you can quickly add them to the blacklist.
Frequent Mistakes and How to Avoid Them
When working with the blacklist on the Redmi Note 7, users often make the following mistakes:
- 📱 Blocking only incoming but not outgoing → In the dialer settings, enable Block outgoing.
- 🔄 Resetting the list after updating MIUI → Before updating, make a backup copy (section above).
- 📵 Ignoring Hidden Numbers → Enable in the dialer Block hidden numbers.
- 🛑 Forget about texting. → Set up SMS lock separately in the Message Menu.
Another common problem is the duplication of locking, and if you add a number to both the system blacklist and the operator's app (e.g., via the USSD), it can cause a crash. Choose one method and stick to it.
💡
On the Redmi Note 7 with two SIM-The blacklist can be duplicated for each card separately. Check the lock settings in the dialer menu for each card. SIM!