How to turn on Yandex Room Definiter on Xiaomi Redmi: full instructions with pictures and tips

Why Yandex.Definition does not work on Xiaomi Redmi and how to fix it

You get calls from unknown numbers, and the standard MIUI detector does not recognize spammers? Yandex.The detector could solve the problem if not for the features of Xiaomi firmware. The fact is that MIUI aggressively blocks background activity of applications, and without it, Yandex service can not scan incoming calls. In this article, we will discuss how to properly configure the application, circumvent the limitations of the system and make it work on the Redmi Note 10/11/12, Redmi 9/10 and other models.

If you have installed Yandex.Definition, but it does not show the names of subscribers, the problem lies in three key settings: 1) no call permissions, 2) battery optimization for the application, 3) conflict with other determinants (for example, built-in MIUI or Truecaller).

We'll go through every item and give you a checklist to check.

By the way, if you have Xiaomi on Android 13/14 And with HyperOS, the process has changed a little bit, and we'll talk about that in a separate section, and for owners of older models, Redmi. 5/6) They have added ways to circumvent the restrictions through ADB.

Step 1: Installation and first activation of Yandex.Definition

Start by installing the official app from Google Play. Avoid third-party APKs - they may contain viruses or outdated versions without MIUI support.

Open the app and click “Start Work”.
Confirm the phone number via SMS (this is mandatory for the service).
Allow access to contacts – without this, the determiner will not be able to compare numbers to the spam database.

⚠️ Note: If the application is immediately closed after installation or if it gives an error “Service is not available”, check the region of your Mi.Yandex.The detector works only for Russian numbers (+To change region: Go to Settings → Xiaomi account → Select "Russia" and restart your phone.

If the app is installed but does not specify the numbers when calling, proceed to the next step – setting permissions.

📊 What Xiaomi Redmi model do you use?

Redmi Note 10/11/12

Redmi 9/9A/9C

Redmi 8/8A

Redmi 7/7A

Another model

Step 2: Set up permissions for calls (the most important step!)

Without the right permissions, Yandex.Definition will not be able to analyze incoming calls. In MIUI, these settings are hidden deep and easy to skip.

Open the “Settings” of the phone and go to the Applications → Application Management.
Find “Yandex.Definition” in the list and tap it.
Select "Permissions" and turn on: 📞 Calls (access to log and call management). 📇 Contacts (to compare numbers to your address book). 🔔 Notifications (to show the name of the caller on the lock screen).

Go back in.

Auto-start

Critical detail: in MIUI 12/13+, call permission may be hidden under the option “Additional permissions” → “Changing phone settings.” If not, update the Yandex app to the latest version.

Calls - on.|Contacts - included|Auto-start - on|Notifications - included|Battery optimization - offline-->

Step 3: Disable battery optimization (otherwise the determinant will not work)

MIUI by default limits the background activity of applications to save charge. For Yandex.Definition, it is disastrous - it must work constantly.

Go to Settings → Battery and Performance → Battery Consumption Management.
Select the Applications Selection and find Yandex.Definition.
Set No Limits Mode (or No Limits in newer versions of MIUI).

HyperOS also has a new feature called “Personal Data Protection” that can block Yandex.Definition from accessing the call log to disable it:

Go to Settings → Privacy → Protection of personal data.
Find Yandex.Definition and disable all restrictions for it.

What if after all the settings, the detector still does not work?

If you have completed all the steps, but Yandex.Determinator still does not show subscriber names, try: 1.Reinstall the application (remove and reinstall from Google Play). 2. Clear the cache in the application settings (Storage → Clear cache). 3. Check the Internet connection: the detector requires network access to reconcile numbers with the Yandex database. 4. Update MIUI/HyperOS to the latest version - there may be bugs with permissions in the old firmware. 5. Try the alternative: if nothing helps, install GetBus or sometimes they work better on Xiaomi (GetBact).

Step 6: Additional settings for power users (ADB, root)

If the standard methods didn’t work and you’re ready to experiment, here are some advanced ways to do it:

Method 1: Disabling the system detector via ADB

This requires a computer with installed ADB-Drivers and Included Debugging USB - Instructions on the phone:

adb shell pm uninstall -k --user 0 com.miui.voiceassist


adb shell pm uninstall -k --user 0 com.android.incallui

These commands will remove the system applications that are responsible for determining numbers, and be careful: after that, some call functions (for example, recording conversations) may stop working.

Method 2: Configure with Magisk (for root)

If you have root access, install the Disable Flag Secure module in Magisk, which will allow Yandex.Definition to display notifications on top of other applications (for example, while playing or watching videos).

⚠️ Attention: Use ADB or root can cause a loss of warranty on Xiaomi Redmi. ADB If you're not sure what you're doing, you better go to the service center.

💡

On most Xiaomi Redmi models, it is enough to set the permissions correctly and disable battery optimization. Advanced methods (ADB, root) are only needed if the standard methods did not work or you have custom firmware.

Alternatives to Yandex.Definition for Xiaomi Redmi

If you couldn’t get Yandex.Definition to work, here are 3 proven alternatives that are better adapted for MIUI/HyperOS:

Annex	Pluses	Cons
Truecaller	Large spammer database, works without root	Lots of advertising, collects user data
GetContact	Shows names even for messengers (WhatsApp, Viber)	Registration is required, sometimes MIUI is blocked
NumBuster	Lightweight, no advertising, supports offline base	Less data on Russian numbers

If you choose Truecaller, be sure to disable the built-in MIUI detector as described in Step 4 to avoid conflict.

FAQ: Frequent questions on Yandex.Definition on Xiaomi Redmi

Why does Yandex.Definition not show names when you call?

There could be several reasons: 🔕 No permission to call (check in the application settings). 🔋 Battery optimization is not disabled (app "falls asleep»). 📵 Conflict with another determinant (e.g., Truecaller or embedded in the MIUI). 🌐 No internet (the detector requires a network connection to check the numbers). Check all the points in Step 2 and Step 3.

How to make the detector work on the lock screen?

To do this, you need: Enable notification permission for Yandex.Determinator. In the Lock Screen settings, allow you to show notifications about calls. In Settings → Applications → Yandex.Determinator → Notifications enable the option “Show on a locked screen”.

Can I use Yandex.Definition without registration?

No. The application requires a link to a phone number for work, which is because Yandex uses your number to do so: 🔐 Verification (to ensure that bots do not abuse the service). 📞 Synchronize data between devices (if you have multiple phones). 🛡️ Spam protection (your number is added to the “white list” of trusted contacts).If you do not want to register, try NumBuster – it works without linking to your account.

Why did the device stop working after the MIUI update?

After major updates (e.g., from MIUI 12 to MIUI 13), application permissions are reset. You need to: Reissue all permissions (calls, contacts, auto-start); disable battery optimization (the way may have changed — see Step 3); check if new system restrictions (e.g., “Personal Data Protection” in HyperOS) appear. If the problem persists, clear the app cache or reinstall it.

How to transfer the contact database from Yandex.Definition to a new phone?

Yandex.The Identifier automatically syncs data with your Yandex account. To move the settings: On your old phone, make sure you log in to your Yandex account in the app. On your new phone, install Yandex.Determinator and log in to the same account. Wait for synchronization (may take up to 5 minutes). If the contacts are not moved, check if sync is enabled in the settings of your Yandex account (Settings → Account → Synchronization).