How to unlock a phone number from the blacklist on Xiaomi

When an important subscriber can’t reach you, and you don’t even know it, it’s more common than you think. Xiaomi, Redmi and POCO smartphone owners often accidentally lock up contacts while using the device or after resetting, which leads to missed calls from couriers, colleagues or loved ones, creating unnecessary conflicts and misunderstandings.

The MIUI operating system and the new HyperOS have powerful call filtering mechanisms built in that work at the system level, which means that the locked number is not just ignored, but is forcibly interrupted before the phone has time to make a sound, and understanding how this mechanism works will help you quickly find the right switch and restore communication.

In this article, we will take a detailed look at all possible lock scenarios: from the standard blacklist in the security app to hidden settings. SIM-You will learn where to look for ignoring lists and how to ensure that you remove the contact you want without erasing your entire call history or other important records.

Where to look for a blacklist in the Security app

The main tool for managing calls in the Xiaomi shell is the system application Security. This is where all filtering settings are concentrated, including blocking by keywords, unknown numbers and manually added contacts. The interface may vary slightly depending on the firmware version, but the logic of the work remains the same for all devices of the brand.

To get to the desired section, you need to open the application with the green shield icon. In the function menu, you should find the item Blacklist or Lock. MIUI This section can be hidden inside a three-dot menu or a "More" button if the screen is low resolution. SMS-message.

⚠️ Warning: Deleting a number from the blacklist in the Security app does not automatically restore the lock if it was set through settings SIM-These systems operate independently of each other.

To unlock a particular subscriber, just click on their list number. A detailed window will open where you select the Unblock or click on the basket icon to completely delete the record. If you want to clear the entire list at once, use the edit button (usually a pencil or three dots in the corner) and select "Clear all."

Sometimes the phone blocks the call automatically, labeling it as "Advertising" or "Telemarketing" even if the number isn't on your personal blacklist.

Unlocking through the standard phone application

An alternative and often faster way to manage locks is to use the built-in Phone (green handset) app, which is especially useful when you need to urgently check the status of a particular contact without digging into the system menus.

Open the Phone app and go to the tab with contacts or call history. Find the number you want in the list. If the contact is saved in the phone book, click on his name to open the card. At the bottom of the screen or in the menu (three dots) there should be an Unblock button or an icon of the crossed-out circle that indicates the current lock status.

• 📞 Click on the tube icon to go to the call history.
• 👤 Find a contact that can’t reach you.
• ⚙️ Open detailed contact information through the menu.
• 🔓 Click the "Unlock Number" button if it is active.

If the number is not saved in contacts, look for it in the log of incoming or outgoing calls. Click on the icon i or arrow next to the number. In the action menu that opens, select Unblock. The system immediately changes the lock database, and calls from that number will begin to pass.

It's worth noting that in the newer versions of HyperOS, the contact card interface has become more minimalist, the lock control button can be hidden under an extra swipe or at the bottom of the action list. If you don't see an explicit button, try pressing the three dots in the top corner of the screen — the unlock feature often hides there.

Settings SIM-Cards and locks at operator level

One of the most common reasons why unlocking through a smartphone menu doesn’t help is active locking at the level of the device. SIM-Operators provide Blacklist services that work independently of your phone. Even if you delete the number from Xiaomi memory, the operator's network will continue to defy the challenge.

Check and change the lock settings at the SIM level through a special code menu or the operator application. To do this, in the Phone application, type a combination of characters specific to your operator (for example, *110*44# or similar, accurate code should be clarified on the operator's website). After sending the request, an SMS with a control menu or a voice response will come to the screen.

Note that commands can change, and for some operators, you can only manage via a personal application (for example, My Megaphone or My Beeline). Go to the services section and find the "Black List" item, where you will see a list of blocked numbers and you can delete them with a single click.

⚠️ Attention: Operator-level lock service is often paid.Before connecting or disconnecting, make sure you understand the tariff terms to avoid unexpected charge-offs.

If you've changed SIM-The card, but the lock problem is still there, so the number is blacklisted in the phone's memory. SIM to another phone (not Xiaomi) and calls still do not pass - the problem is exactly on the operator's side or in the settings of the operator. SIM.

Managing locks in Google contacts and syncing

Many Xiaomi users store their contacts in a Google account, in which case lock settings can be synchronized between devices or managed via a web interface, which creates a situation where deleting the phone number does not work, as the lock rule “flyes” back from the cloud.

You can check this by going to contacts.google.com from your computer or other device. Log in to your Google account associated with your phone. In the menu on the left, look for the "Blocked Numbers" section. If there is a contact you want, delete it from there. Changes will apply to all devices that have contact sync enabled.

Also worth checking the settings of the Contacts app itself on your smartphone. Open the Contacts app, click three dots in the corner and select Settings. Find "Blocked Numbers." This can display a list of numbers blocked through Google's service, not through MIUI. The difference is fundamental: the system lock Xiaomi works always, and the blocking Google may depend on the operation of Google Play services.

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If you use third-party applications for calls (such as Truecaller or Yandex.Phone), check the locks in them. They can intercept call management and ignore the system settings of Xiaomi.

In the event of a conflict between a local MIUI blacklist and Google's cloud list, priority is usually given to a stricter rule, meaning that if a number is locked in any one place, the call won't pass, so it's important to clear the listings at all points: the Security app, the SIM settings, and the Google account.

Third-party applications and antiviruses

Often users install additional antivirus or number-detection apps (e.g. Kaspersky, Dr.Web, GetContact) that have their own databases and lock mechanisms that run on top of the system. If you can't find a number in standard Xiaomi settings, it's likely blocked by third-party software.

Open the installed antivirus application or number detector. Find the section related to security, anti-spam or blacklist. The interfaces of such programs are usually very similar to the system: there is a list of blocked, a list of allowed actions and a log of actions. Deleting the number is done by a standard swipe or through the editing menu.

• 🛡️ Run the installed antivirus or number detector.
• 📜 Go to the Antispam or Blacklist section".
• 🗑️ Find the number in the list and delete it.
• ✅ Check that the lock function for this type of numbers is disabled.

Special attention should be paid to applications that require permission to access calls. They can aggressively filter inboxes by labeling them as spam, even without explicitly blacklisting the user. In the settings of such applications, there is often a function "Block all hidden numbers" or "Block unknowns", which could be activated accidentally.

⚠️ Note: When you remove a third-party antivirus or number detector, its blacklist may not be cleared automatically.Be sure to go to its settings before removing the application and manually reset all locks.

If you use multiple apps at once, they may conflict, and it is recommended to leave only one spam protection tool to avoid the confusion with settings and double call filtering that sometimes leads to malfunctions of the phone.

Specifics of unlocking in MIUI 14 and HyperOS

With the release of new versions of MIUI 14 and especially HyperOS, Xiaomi has significantly redesigned the interface and security logic, changing the location of some menu items, and new intelligent filtering features that you need to know about.

In HyperOS, the Security app has become more integrated into the overall system. The path to the blacklist can now look like Settings → Apps → System App settings → Security → Blacklist. This is done to unify the interface, but can confuse users who are used to the old menu, and there is a more flexible lock schedule setting.

The new system allows you to create complex scenarios: for example, lock all numbers that are not saved in contacts only at night or on weekends. If you are faced with a situation that the number is blocked only at certain times of the day, check the Schedule or Modes section inside the blacklist settings.

Another feature of the new firmware is improved integration with global spam databases.The phone can automatically block numbers that are marked as fraudulent by thousands of other users.You can turn off this feature in the anispam settings by unchecking the "Update spam database" or "Block suspicious numbers."

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In the new versions of MIUI and HyperOS, lock settings have become more deeply integrated into the system, so you need to look for them not only in the application shortcut, but also in the general settings of the phone.

Frequently Asked Questions (FAQ)