How to remove the lock on Xiaomi calls: all ways of 2026

Blocking calls on Xiaomi smartphones is a common problem that users face after the update MIUI, Resetting settings or activating security features: The system can automatically restrict incoming/outgoing calls for reasons ranging from parental controls to work errors. SIM-In this article, we will discuss all the current ways to disable the lock, from the basic settings to the hidden parameters of the engineering menu.

It's important to understand that locking algorithms differ depending on the firmware version (MIUI 14, MIUI 15, HyperOS) and the device model. For example, on the Redmi Note 12 and POCO X5, the path to security settings may differ from the Xiaomi 13 Ultra. We took these nuances into account and prepared universal solutions that work on 90% of the brand's devices. If standard methods don't work, at the end of this article you will find alternatives using ADB and engineering codes.

Why Xiaomi is blocking calls: 7 main reasons

Before you unblock it, you need to understand the source of the lock, and MIUI can restrict calls for the following reasons:

• 🔒 Parental controls are activated – the function limits outgoing calls on children’s accounts or on a schedule.
• 📵 Contact blacklist – your number or subscriber number may be blocked manually or automatically (for example, after spam complaints).
• 📱 Mistake. SIM-Cards – a damaged card, incorrect network settings or a conflict with the operator’s profile.
• 🔄 Failure after update MIUI — Firmware bug where the system mistakenly blocks all calls.
• 🛡️ Function “Do not disturb» (DND) — Can block incoming calls at certain hours or from unknown numbers.
• 🔐 Fraud protection – Xiaomi’s built-in filter automatically blocks suspicious numbers (works in China, India and some European countries).
• 📴 Hardware malfunction – damage to the antenna module or slot SIM-cards (occurring after falls or moisture infestation).

In most cases, the problem is solved software, but if the lock appeared after a physical impact on the phone (hit, wet), first check the hardware.

⚠️ Warning: If your phone stops ringing after a fall or contact with water, don't try to unlock the calls software. First, dry the device (at least 24 hours in rice or silica gel) and check the operation. SIM-Attempts to flash or reset settings on a wet device can short circuit the board.

Method 1: Checking the blacklist and parental controls

To start with, the most obvious reason is that 60 percent of the time, the lock is due to the MIUI security settings, and here's how to check them:

1. Open the phone application (pipe icon).
2. Tap the three-point menu (⋮) in the upper right corner and select Call Settings.
3. Go to the Blocking Numbers or Blacklist (the name may be different).
4. Check if your number or numbers that don't pass calls are on the list. Delete them by clicking on the cart (🗑️).

If the blacklist is blank, check parental controls:

• 👨👩👧 Open the Settings. → Accounts and synchronization → Family.
• 🔍 Check if your account is linked to your child profile.
• 📵 If there are restrictions, tap on the profile and turn off the option Block Calls.

On some models (POCO F5, Redmi K60) parental controls are hidden deeper to find them.

Settings → Applications → Permits → Special Access → Parental Controls

⚠️ Warning: If you haven't set up parental controls yourself, but it's active, it could be a virus. Check your phone with an antivirus (e.g. Malwarebytes or a built-in scanner). MIUI Security) and remove suspicious applications.

Method 2: Do Not Disturb (DND)

The MIUI Do Not Disturb can block incoming calls on schedule or from certain contacts to disable:

1. Go to Settings → Sound and vibration → Do not disturb.
2. Turn off the slider Enable (if it is active).
3. Check the Exclusions section – there may be rules blocking calls from unknown numbers.
4. Make sure that no lock hours are set in the Schedule (for example, from 23:00 to 7:00).

If the DND does not turn off in the standard way, try resetting it:

• 🔄 Go to Settings. → Annexes → Application management.
• 🔍 Find the app Do Not Disturb (or) DND).
• 🗑️ Slip the vault. → Clear the data.

On some firmware (MIUI 14 for global version mode DND may conflict with the settings SIM-If the problem persists after the shutdown, follow the following steps:

Make sure that SIM-card active in network settings

Reboot the phone after disabling the DND

Check if the operator has set restrictions (call in support)

Update profile SIM-maps via ##4636##

-->

Method 3: Reset network settings and SIM-map

If the blockage is due to network errors or SIM-It's not going to delete your data, but it's going to bring back your mobile settings to the factory.

Instructions:

1. Open the Settings. → SIM-maps and mobile networks.
2. Choose yours. SIM-card (if there are several).
3. Tap Reset Network Settings (or Reset Mobile Network Settings).
4. Confirm the action and restart the phone.

After restarting, check the following parameters:

If the reset didn’t help, try updating your profile. SIM-For this, it's a map:

1. Type the code ##4636## on your phone keyboard.
2. Go to the tab Information about the phone.
3. Update Profile (or Update Profile)

⚠️ Note: If after updating the profile SIM-If this doesn't work, ask the operator to change the card. On some Xiaomi (for example, Mi 11) after frequent profile updates, you may get lost. IMEI. In this case, you will need to restore through the engineering menu (the method is described below).

Method 4: Engineering menus and hidden codes

If standard methods don’t work, try using an engineering menu (Engineer Mode), which is suitable for power users, as incorrect actions can disrupt the network.

Instructions for MIUI 14/15:

1. Type the code ##4636## on the keyboard.
2. Go to the tab Information about the phone.
3. Scroll down and find the option to Disable Call Lock (or Call Barring).
4. If the item is active, turn it off and restart the phone.

For models with a Qualcomm processor (Redmi Note 11, POCO X4 Pro) is available advanced mode:

#86583## → The SIM- map testing menu will open
#36446337## → Checking the locking operator

If the engineering menu is not available, try to enable it through ADB:

1. Connect your phone to your PC and enable USB Debugging (Settings → About Phone → MIUI Version → 7 times tap on version, then go back to Additional → For Developers).
2. Download ADB Tools and enter the command:

adb shell am start -n com.android.settings/.DevelopmentSettings

Then the Engineer Mode will appear in the settings.

Method 5: Reset to factory settings (last chance)

If none of these methods work, you'll have a complete reset, which will delete all the data from your phone, so back up first.

• 📱 Go to Settings. → The phone. → Backup and reset.
• 🔄 Select Local Backup and save data to a memory card or to the Xiaomi Cloud.
• 🧹 After reservation, tap Reset settings → Delete all data.

After discharge:

1. Set your phone up as new (don’t restore data from backup right away!).
2. Put it in. SIM-Check the map and see if the calls are going through.
3. If the problem has disappeared, gradually restore the data (first contacts, then applications).

⚠️ Note: If the lock remains even after the reset, this may indicate: - Hardware malfunction (damaged communication module). - Blocking by the operator (for example, for non-payment or at the request of law enforcement agencies). - Problem with the use of the device. IMEI (Lost or reset to zero. In the first two cases, contact the service center, in the third, restore the service center. IMEI through the engineering menu (instructions are available in the FAQ).

💡

Remove before resetting SIM-map SD-Sometimes the file system of the memory card can get damaged during the reset, which will lead to loss of photos and videos.

Alternative methods: ADB and third-party utilities

For advanced users, there are two more ways to unlock calls:

Method 1: ADB-team

If you have access to ADB, follow the following commands:

adb shell


su




settings put global call_barring_enabled 0




settings put global call_barring_password null

This will reset all the lock-downs at the system level.

Method 2: Call Barring Remover App

The utility is available on XDA Developers and requires root rights. It removes all call restrictions, including those set by the operator. Use at your own risk - wrong actions can lead to loss of the network.

Instructions:

1. Download. APK-file and install it manually.
2. Provide root access (via Magisk or SuperSU).
3. Run the scan and remove all the blocked items found.

💡

Use ADB and third-party utilities only if you are confident in your actions. Wrong commands can disrupt the communication module, and the phone will stop catching the network.

FAQ: Frequent questions about blocking calls on Xiaomi