Do you suspect that your Xiaomi (or Redmi/POCO) is automatically blocking incoming calls, but don’t know how to check the blacklist? or want to add an unwanted number but can’t find this feature in the latest versions of MIUI? The blacklist on Xiaomi smartphones works differently than on other Android devices – its settings are hidden deeper, and some firmwares don’t have a standard interface at all.
In this article, we will look at all the current ways to check the blacklist on Xiaomi in 2026, from official methods through phone settings to hidden commands and third-party applications, learn how to view blocked numbers, remove them from the list, and what to do if the feature suddenly disappeared after the MIUI 14/15 update.
Where is the blacklist on Xiaomi: the official way
Most Xiaomi, Redmi and POCO smartphones have a blacklist built into the standard Phone app, but it depends on the MIUI version and regional firmware. Here is a universal guide for the latest updates:
- Open the Phone app (the tube icon on the home screen).
- Press three points (⋮) in the upper right corner and select Settings.
- Go to the section "Block numbers" or "Spam" and "block" (the name may differ).
- Slip on the Blacklist – all blocked contacts and numbers will be displayed here.
If you MIUI 14/15 With global firmware, the path can look like this: → ⋮ → Settings → Lockdown and protection → Blacklisted on some models (e.g. Xiaomi) 13T or Redmi Note 12) This section is called Blocked Numbers.
Open the phone app
Push. ⋮ → "Settings"
Find the "Blocking" or "Spam" section
Check the list of blocked numbers-->
Importantly, if you don't see the Blacklist, it doesn't mean it doesn't. Some firmware (like Chinese or custom) has a hidden feature.
Hidden Ways: How to Find a Blacklist if It’s Not in Settings
On smartphones with Chinese firmware (China ROM) or modified versions of MIUI (e.g. Xiaomi.EU), the standard blacklist may not be available.
1. Through the System Application Security
Many lock functions are transferred to the Security app (shield icon).
- 📱 Open Security. → Number locking.
- 🔍 If there is no section, try searching for the settings request blacklist.
- 🔄 In some models (POCO F5, Xiaomi 12: The feature is called Spam Protection.
2. With the help of USSD-code
On older models (Redmi 4X, Mi A1), the blacklist can be checked through a special code:
##4636##Once you enter, select Phone Information → Network Settings → Call Lock. Attention: This method does not work on all devices and may not be available in newer versions of MIUI.
Why is there no blacklist?
3. through the engineering menu (for advanced users)
If the standard methods don’t work, try the engineering menu:
- Enter the code ##36446337## MTK-chips) or ##4636## (for Qualcomm).
- Go to Connectivity → Call Blocking.
- This can display locked numbers at the modem level.
⚠️ Warning: Do not change other options in the engineering menu without knowing their purpose, this can lead to network failures or complete loss of communication.
How to Add a Number to a Blacklist on Xiaomi
Adding a number to the blacklist on Xiaomi takes a few seconds, but the methods differ depending on the version of MIUI.
Method 1: Through a call log
- 📞 Open the call log in the phone application.
- 👆 Click on the number you want to lock and hold it for 2 seconds.
- 🚫 In the menu that appears, select Block or Add to the blacklist.
- ✅ Confirm the action.
Method 2: Through lock settings
If you want to block a number that is not in the log:
- Go to the phone. → ⋮ → Settings → Number locking.
- Press Add Number.
- Enter the number manually or select from the contacts.
- Save the changes.
Method 3: Block all unknown numbers
MIUI 14/15 has a function to block all unsaved contacts.
- 🔒 Go to the phone. → ⋮ → Settings → Lockdown and protection.
- 📱 Activate the option to Block Unknown Numbers.
- ⚠️ Be careful: this will block all incoming numbers that are not in your phone book.
💡
If you frequently receive spam calls, turn on Spam Filtering (under Blocking and Protection) in your phone settings, which automatically detects fraudulent numbers from MIUI and carrier databases.
How to remove a number from the blacklist
Deleting a locked number is even easier than adding it. Here's a step-by-step guide:
- Open the phone. → ⋮ → Settings → Blacklist.
- Find the number you want to unlock in the list.
- Swipe left on the number or click on it and select Remove (basket icon).
- Confirm the action.
If the number is not deleted in the standard way, try:
- 🔄 Restart your phone – sometimes the lock list hangs".
- 📲 Clear the phone app cache in settings (Settings) → Annexes → Application management → Phone. → Clear the cache).
- 🔧 Reset network settings (if the number is locked at operator level).
⚠️ Note: On some models (POCO X3, Redmi 9) after deleting the number from the blacklist, the lock can be saved due to a failure of synchronization with the Mi Account, in which case logging out and re-entering will help.
What to do if the blacklist doesn’t work
Sometimes users face a problem when the blacklist on Xiaomi does not block calls or, conversely, blocks all numbers, including allowed ones.
| Problem. | Possible cause | Decision |
|---|---|---|
| Numbers are not blocked. | Sync with Mi Account is disabled | Sign in to Xiaomi account and enable contact synchronization |
| The list is empty, but calls are blocked. | Operator-level locking | Call the operator or check your personal account (for example *111# for Beeline) |
| Can't add a number. | Restrictions of Chinese firmware | Install a global MIUI or use third-party apps |
| Blacklist resets after reboot | Failure of the application Phone | Clear the app data (Settings → Applications → Phone → Storage → Clear data) |
If none of the solutions worked, try resetting your network settings:
- Go to Settings. → SIM-maps and mobile networks.
- Select Network Resetting.
- Confirm the action and restart the phone.
Xiaomi (11/12/13) series
Redmi (Note, K-series)
POCO (F, X, M-series)
Another brand-->
Third-party applications for managing the blacklist
If the built-in MIUI tools don’t suit you, you can use third-party apps. They offer advanced features: keyword lock, lock schedule, blocked call log, etc. Here are the best options for Xiaomi:
- 🛡️ Truecaller: detects spam numbers and blocks them automatically. MIUI supports the Russian language.
- 📵 Blacklist Plus – allows you to create multiple blacklists with different rules (for example, separately for the use of blacklists). SMS call).
- 🔇 Call Blocker – a simple blocker with a list backup function.
- 🤖 Should I Answer? – Analyzes real-time numbers and warns of fraudulent calls.
To install any of these applications:
- Download it from Google Play.
- When you first start, give permissions to access calls and contacts.
- Set up the lock rules in the app menu.
⚠️ Note: Some applications (e.g. Truecaller) require constant internet access to run a spam number database, which can increase battery consumption by 5-10%.
💡
Third-party applications are useful if the built-in blacklist in MIUI is unstable or non-existent, but they consume additional resources and may conflict with system lock services.