Xiaomi: How to remove from the blacklist and unlock the number

A situation where an important call does not arrive, and you do not even see a missed call, can drive any smartphone owner mad. Often the cause is an accidentally activated lock function or a software failure in the shell of MIUI or HyperOS. Xiaomi owners often face the fact that the number is in the “black list” without the user’s knowledge, or it can not be removed from there by standard methods.

The Chinese-made Android operating system has a complex call management structure, which interweaves the phone system app, operator functions, and third-party security services. Understanding how call filtering works will help you quickly reconnect with the right contacts. In this article, we will discuss all the available ways to solve the problem.

There are several levels of locking, from simply adding a contact to a stop list to deep antivirus settings. Sometimes it is enough to just reboot the device, but more often it requires manual intervention in call settings. We will look at the algorithms for different versions of firmware to make the instruction relevant for both the old Redmi Note and the new flagships of the Mi series.

The main reasons for blocking incoming calls

Before you start deleting a number, you need to understand why it was blocked. Often users activate Do Not Disturb or Quiet Hour without realizing the consequences. In Xiaomi, these features can work aggressively, cutting off calls from anyone who is not on their favorites. This is not a full blacklist, but the effect is identical.

Another common reason is the built-in antivirus or the Security app, and artificial intelligence algorithms can mistakenly label ad agency numbers or even ordinary people as spam, and the automatic lock-down happens without you directly participating, and the system analyzes the complaint database and decides to isolate the subscriber.

It's also a human factor to consider. A random tap while you're talking or when you're looking at a call history can instantly add a contact to the stop list. MIUI sometimes has control buttons so that they're easily touched. If you don't remember when you locked them, that's probably how it happened.

Delete the number through the standard application "Phone"

The easiest and most obvious way to manage locks is directly in the call app, which is where the main log and filter settings are stored. To start, open the standard caller, which usually has a green phone icon, and you'll need to go to the option menu.

Click on the icon with three dots or bars at the top of the screen. In the list that opens, select "Blocking Settings" or "Antispam." The path may vary slightly depending on the version of the shell, but the logic remains the same. Inside, you will see the "Black List" section where all blocked contacts are stored.

Inside the blocked number list, find the contact you want, and there's usually a deletion button or rule editing next to the number, and click on it to unlock the subscriber, and then the changes take effect instantly, and you can take calls again.

• 📞 Open the call log and find the locked number if it is displayed there.
• ⚙️ Go to call settings via the three-point menu.
• 🚫 Select the Blacklist option to manage exceptions.
• ✅ Click on the number and select “Delete” or “Unblock».

⚠️ Note: If you delete a number from the list but the calls still don't go through, try restarting your smartphone. Sometimes the cache of the telephony system requires an update to apply new filtering rules.

Configure through the “Security” application

In the Xiaomi ecosystem, the central permissions management node is the Security System App (a green shield icon) that duplicates the locker’s features and often takes precedence over the phone’s standard settings. If you don’t find the right number in the Phone app, be sure to check this section.

Run the app and find the Antispam or Lock section, and you can see more detailed settings here, not only the list of numbers, but also the statistics of blocked SMS and calls. To edit the list, click on the gear icon or menu in the corner of the screen.

In the anti-spam settings menu, select Blacklist, which displays all numbers that have been manually or automatically locked, select the contact you want and click the delete button, and in this section, you can set up Whitelist, adding important numbers to ensure that they are never blocked, even if the system considers them suspicious.

It is important to note that the Security app can set the lock by keywords or hidden numbers. If the problem is massive, check these tabs. Deep cleaning of settings in this app often solves problems that cannot be fixed by standard means.

Resetting call and network settings

If manual deletion doesn't work, there may have been a software failure in the communication module, and in such cases, network resets are effective, and this action won't delete your personal data, photos or contacts, but will return call and Internet settings to factory values, which often helps when the configuration file is corrupted.

To do the reset, go to the Settings menu of your smartphone. Find the About section or search the settings by entering the word Reset. You need to go to Reset your Wi-Fi, mobile Internet and Bluetooth settings. Confirm the action and wait for the communication modules to reboot.

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Before resetting your network settings, make sure you remember the Wi-Fi passwords, as they will have to be re-entered after the procedure is done.

Once reset, the phone will re-register on the operator's network, check if the number has disappeared from the blacklist, if the problem was caused by a software bug, this method should fix it. SIM-card or contacting a communications operator to check services on the network side.

• 🔄 Open Settings and find the Connection and Sharing section».
• 📡 Select "Reset Wi-Fi, Cellular Networks and Bluetooth».
• 🔑 Confirm the action by entering the screen unlock password.
• 📲 Wait for the network icons to appear and check the call work.

Use of hidden menus and ADB commands

For advanced users who are not helped by standard methods, there is the option of using USB debugging and ADB commands. This method allows you to directly interact with the database of contacts and locks. It requires connecting the smartphone to the computer and having ADB drivers installed.

First, you need to activate the developer mode. Go to About Phone and quickly click on the build number seven times (MIUI Version), then the "Developers" option will appear in the settings menu. Inside, activate "Debugging USB", connect the phone to your PC and start the command prompt.

To clean the blacklist, you can use a command to delete the telephony application data. Be careful, this can reset the call history.

adb shell pm clear com.android.dialer

Alternatively, you can use a hidden test menu, type ##4636## in the call app, and although there's no direct blacklist clearing button, you can check the network status and make sure that the lock is not happening at the radio level. The engineering menu is a powerful tool, but it requires care.

⚠️ Attention: Use of teams ADB And logging into the engineering menu can cause the system to run in an unstable way if you do something wrong.

What to do if the number is not deleted

There are times when Xiaomi's system is not behaving properly and does not allow you to delete a number from the list, the delete button may be inactive or disappear after clicking, in which case it is worth checking whether the number is part of the system group or is not blocked at the level of a Google account or Mi Account.

Try adding this number to your contacts with a new name and then try to unlock it through your contact card. Sometimes, linking to a phone book entry changes the lock status, and the effective method is to temporarily remove the Security app itself from the updates or clear it through the application management menu.

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If standard methods don’t work, try removing updates to the Phone and Security system applications through the application settings, returning them to the factory version.

In extreme cases, if the problem persists and interferes with normal life, it may be necessary to completely reset the device to factory settings.This is a radical measure that is guaranteed to remove all software errors, but will require data recovery from the backup.

• 📝 Create a new contact entry for a problem number.
• 🗑️ Try to remove the lock through the new contact card.
• 🏭 Consider resetting telephony application settings.
• 💾 Make a full backup of your data before radical action.

Frequently Asked Questions (FAQ)