Yandex number determiner on Xiaomi: how to turn on and configure the service

Xiaomi smartphones offer users a wide range of customization options, including the integration of third-party services to identify incoming calls. One of the most popular tools in Russia is the number detector from Yandex, which not only shows the name of the caller, but also blocks spam. However, many owners of Redmi, POCO or Mi devices face difficulties in configuring it due to the features of the MIUI firmware.

In this article, we will explore all the ways to activate the service, from standard installation via Yandex.Browser to manual integration through system settings. You will learn why the determinant may not work on some Xiaomi models, how to circumvent the limitations of MIUI 14/15, and what alternative solutions exist for older versions of the firmware, special attention is paid to problems with resolutions, conflicts with the built-in Mi Caller ID determinant and optimization of battery consumption.

The material will be useful for both beginners and experienced users who want to customize the service as efficiently as possible. All instructions are tested on the current models Xiaomi 13/14 series, Redmi Note 12/13 and POCO F5/X5 with the latest versions of MIUI (including global and Chinese builds).

Why does Yandex-definition not work on Xiaomi by default?

The main problem is the competition of system services, and MIUI's default firmware uses its own number detector, the Mi Caller ID, which automatically blocks third-party applications from accessing phone functions.

• 🛡️ Data Protection – Xiaomi restricts access to call logs for privacy reasons.
• 📱 Performance optimizations – Multiple determinants working simultaneously can slow down incoming call processing.
• 💰 Promotion of own services - Mi Caller ID Monetized through advertising and premium subscriptions.

In addition, devices with MIUI for the European / Global Market (EEA ROM) have additional GDPR restrictions that require explicit user confirmation to access phone functions. Even after installing Yandex.Browser or Yandex.Phone, the service may not be activated automatically.

⚠️ Attention: On devices with MIUI China ROM (The Yandex Definition may not work at all due to the lack of support for Google services and restrictions of local legislation, in which case a complete reflashing to the global version will be required.

Method 1: Activation via Yandex.Browser (the simplest method)

If you use Yandex.Browser as your primary, the number detector is already built into it.

1. Open Yandex.Browser and go to Settings → Number Definiter.
2. Activate the switch to show the names of the callers.
3. Click Allow access to calls and confirm the rights in the system window.
4. Return to your browser settings and enable the option to Block Spam (optional).

After that, when you call in, you will see the subscriber’s name or the “Spam” tag if the number is in the Yandex database, which works on most Xiaomi devices, but may require additional permissions in MIUI.

Make sure that Yandex.Browser has access to Calls and Contacts in the application settings

Reboot your smartphone after activation

Check that in Settings → Applications → Permissions → Auto-Run Browser Added to Exceptions

Make a test call from another number to check the name display-->

Method 2: Installation of Yandex.Phone application

For users who do not want to use the browser, there is a separate application - Yandex.Phone.It has advanced functions of the determinant, including:

• 📞 Number recognition even without the Internet (offline database).
• 🚫 Blocking spam with the ability to manually add numbers to the blacklist.
• 📊 Call statistics with activity analysis by day/week.

To set and set it up:

1. Download Yandex.Phone from Google Play or AppGallery.
2. Launch the application and go through the initial setup by giving access to Calls, Contacts and SMS.
3. In the main menu of the application, activate the options: Settings → Number Definer → Show Settings names → Spam → Block spam calls
4. Return to MIUI settings and add Yandex.Phone to Autostart and No battery restrictions.

Note: On some Xiaomi models (e.g. Redmi Note 10 Pro with MIUI 13), the application may conflict with the built-in Mi Caller ID. In this case, you will need to disable the system detector (instructions in the next section).

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If after installing Yandex.Phone, the names of the callers are not displayed, try temporarily disabling Mi Caller ID in the MIUI settings. To do this, go to Settings → Applications → Application Management → Mi Caller ID → Disable.

Method 3: Manual disabling Mi Caller ID for Yandex to work correctly

The built-in Mi Caller ID often blocks third-party services to deactivate:

1. Go to Settings → Applications → Application Management.
2. Find Mi Caller ID (or Number Definiter on Russian firmware).
3. Click Disable and confirm the action.
4. Reset the device.

On some versions of MIUI (e.g. 14.0.5), the shutdown option may be hidden.

• 🔧 Use it. ADB-command for forced shutdown: adb shell pm disable-user --user 0 com.miui.yellowpage
• 📲 Install a patch through Magisk (root access required).

⚠️ Attention: Disconnect Mi Caller ID This may cause a failure of the standard phone application on some firmware. Before performing the actions, back up the data through Settings. → Additionally. → Backup and reset.

Solving problems with allowing access to calls

Even after installing Yandex.Phone or activating the browser's determinant, the service may not work due to insufficient permissions.

1. Access to calls: Settings → Applications → Application Management → Yandex.Phone / Browser → Permissions → Calls → Allow
2. AutoRun: Settings → Battery and Performance → AutoRun Management → Yandex.Phone/Browser → Enable
3. No battery restrictions: Settings → Battery and performance → Application selection → Without restrictions → Yandex.Phone/Browser
4. Special access: Settings → Special features → Applications with special rights → Change system settings → Yandex.Phone → Allow

If the permits are not on the list, this may mean that:

• 🔄 Firmware MIUI modified (e.g. custom assembly).
• 📵 The device is in mode for developers with limited rights.
• 🛠️ Google Play Services Update Required (check Settings) → Annexes → Google Play Services → Update).

Alternative numbering determinants for Xiaomi

If Yandex.Definition is not configured, consider alternatives:

For the installation of alternatives:

1. Download the app from Google Play or the official website.
2. Provide all the necessary permissions (similar to Yandex.Phone).
3. Disable Mi Caller ID if conflicts arise.
4. Set up auto-start and battery exceptions.

Yandex.Phone/Browser|Truecaller|GetContact|Mi Caller ID (built-in)|Other-->

Optimization of the work of the determinant: tips for MIUI

To ensure that the service works stably and does not discharge the battery, follow the recommendations:

• 🔋 Limit background activity: In Settings → Battery → Background activity set for Yandex.Phone Mode Optimized (not Without restrictions, otherwise battery consumption will increase).
• 📶 Configure database update: In the Yandex.Phone application, disable Auto-Update base in roaming if you use mobile Internet.
• 🛡️ Check the antivirus: Some antiviruses (e.g. Avast) block access to calls. Add Yandex.Phone to exceptions.
• 🔄 Update the firmware: In new versions MIUI 15 Improved compatibility with third-party determinants.

Important: On devices with a Snapdragon 8 Gen 2 processor (for example, Xiaomi 14), the detector can slow down due to aggressive MIUI optimization. In this case, disabling the Deep Optimization function in the battery settings for Yandex.Phone will help.

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For maximum accuracy of the detector, regularly update the database of numbers manually (in the settings of Yandex.Phone → Define → Update the database).

FAQ: Frequent questions about setting up a determinant on Xiaomi