How to enable the number determinant from Yandex on Xiaomi (all models 2020-2026)

Why you need to identify incoming calls on Xiaomi

Xiaomi MIUI-based smartphones have a built-in numbering feature, but it works limitedly: only shows contacts from the phone book and spam calls through the Mi Security database. Yandex.Number Definition expands these capabilities by pulling up data from a vast database of organizations, delivery services and individuals. This is especially useful for owners of Redmi Note 12, POCO X5 or Xiaomi 13T, who often encounter unknown courier numbers, banks or government services.

The main advantages of Yandex.Definition over the standard solution from MIUI:

  • πŸ“ž 50 base+ million numbers (against) ~$10 million for Mi Security)
  • 🏒 Exact definition of organizations (including branches and branches)
  • πŸ›‘οΈ Filtering fraudulent calls on current schemes of 2026
  • 🌐 It works even when the Internet is disconnected (caches the latest data)

Important: the service is system-level integrated, so it doesn’t require you to open the app all the time, but on Xiaomi with MIUI 14 and later, there may be conflicts with the built-in determinant, as more in the problem solving section.

Requirements for the service on Xiaomi

Before setting up, check if your device meets the minimum requirements:

ParameterMinimum valueRecommended
Android version9.0 Pie11+ (for full synchronization)
MIUI version1112.5/13/14
Access rightsReading call logsAuto Start + Background work
Free memory100MB300+MB (for base cache)

On Xiaomi models with MediaTek processors (e.g. Redmi 10C or POCO M5), the detector may run slower due to the chipset’s power saving limitations, in which case it is recommended to manually add the app to the battery optimization exception list.

⚠️ Attention: On devices with MIUI Global may require additional permission from Display over other apps to correctly display pop-up notifications about the number.

πŸ“Š What Xiaomi model do you use?
Redmi Note 11/12/13
POCO X3/X4/X5
Xiaomi 12/13/14
Another model

The most reliable method is to activate the determinant through the official Yandex.Mail app, since it has extended system rights, which works on 95% of Xiaomi devices without root rights.

  1. Install Yandex.Mail from Google Play (version no lower than 23.80).
  2. Open the app and log in (or create an account).
  3. Go to Settings. β†’ Number-defining.
  4. Activate the switch to show the names of subscribers.
  5. In the window that appears, click Allow to access call logs.

After that, the service will start to work automatically. The first number determination can take up to 3-5 seconds, which is normal, since it is synchronized with the base.

The switch is activated in Yandex.Mail|Rights to call logs granted|In the settings MIUI auto-start allowed|Appendix added to battery exceptions-->

Method 2: Hand-mounted APK (for older models)

If your Xiaomi does not support Google Play Services (e.g. Redmi) 5A on the scaling board, or you are using MIUI China, you can set the determinant through APK-file:

  1. Download the latest version of Yandex.Definition (version 5.40+).
  2. Allow installation from unknown sources in Settings β†’ Applications β†’ Special Access Rights β†’ Install unknown applications.
  3. Install APK and open the app.
  4. Manually issue licenses: πŸ“± Call logs (required) πŸ”„ Auto-start πŸ”‹ No battery restrictions

⚠️ Attention: On Xiaomi with MIUI 14 after installation APK You may need to restart the device, otherwise the detector will not appear in the list of applications with call access rights.

What to do if the APK is not installed?
If you install an error "Application not installed", try: 1. Remove previous versions of Yandex.Definition through Settings β†’ Applications. 2. Clear the cache of Google Play Services (if installed). 3. Use an alternative APK source, for example, APKPure. 4. On models with MIUI 13+, disabling the MIUI Optimization function in the developer settings (Settings β†’ Phone β†’ MIUI Version β†’ 7 times tap).

Optimal settings for Xiaomi

To ensure that the determinant works stably and does not conflict with MIUI, configure the following parameters:

Rights and permits

  • πŸ”“ Settings β†’ Annexes β†’ Application management β†’ Yandex.Mail/Definition β†’ Rights. β†’ Call logs β†’ Permission.
  • πŸ”„ Settings β†’ Battery and productivity β†’ Battery consumption management β†’ Yandex.Mail β†’ No restrictions.
  • πŸš€ Settings β†’ Annexes β†’ Auto-start β†’ Turn on for Yandex.Mail

Determinant settings

In the application Yandex.Mail:

  • πŸ“΅ Enable Spam Blocking (filters scammers)
  • 🌍 Activate International Numbers (if you are calling abroad)
  • πŸ” Turn off the display of advertising (reduces the load)

For models with AMOLED-screens (e.g. Xiaomi) 13 Pro or Redmi K60) It is recommended to disable the animation of pop-up windows in the settings of the determinant - this will reduce battery consumption on the 5-7%.

πŸ’‘

If the detector doesn’t show names after setting up, try making a test call to 8 800 250-07-71 (Yandex Support Service) and this forcefully synchronizes the database.

Typical problem solving

Even after you set it up properly, you can have failures, and here are the most common mistakes and their solutions:

Problem.Reason.Decision
Doesn't show names.Conflict with Mi SecurityDisable the built-in determinant in Settings β†’ Memory and files β†’ Cleanup β†’ Settings β†’ Defining numbers
10+second delayMIUI background restrictionAdd the application to Secure Applications (in battery settings)
Not working after the updateResetting permitsReinstall the application and grant rights again
Shows "Unknown."No Internet.Turn on mobile data or check your Wi-Fi connection

POCO F5 and other HyperOS devices (new shell from Xiaomi) may require additional Display pop-up windows resolution. Find it in Settings β†’ Special Rights β†’ Other permissions.

⚠️ Warning: If after all the manipulations, the detector still doesn’t work, check if your Xiaomi Magisk or other modules that modify system services are installed on your device.

Security and confidentiality

Many Xiaomi users worry about transferring data to Yandex, and this is what really happens when you use a determinant:

  • πŸ”’ Not transmitted: contents of calls, SMS, phonebook contacts
  • πŸ“€ Transmitted: Incoming/outgoing calls (without reference to your account) Call times and durations (for spam statistics) Device model and OS version (for optimizing service)

For additional protection:

  1. Turn off Personalized recommendations in the settings of Yandex.Mail.
  2. Use a VPN when you first start up (like Cloudflare’s Warp).
  3. Regularly clean the app cache through Settings β†’ Applications β†’ Yandex.Mail β†’ Memory β†’ Clear the cache.

On Xiaomi with MIUI 14, you can restrict geolocation access for the determinant, as it is not used to identify numbers. Go to Settings β†’ Privacy β†’ Permits β†’ GeoData β†’ Yandex.Mail and select Opt-out.

πŸ’‘

Yandex.The detector does not have access to conversation records or SMS – it analyzes only the metadata of calls (number, time, duration).

Alternatives to Yandex.Definition for Xiaomi

If the service from Yandex is not suitable, consider these options:

AnnexPlusesConsCompatibility with MIUI
TruecallerLargest room database (300 million+)Registration is required, lots of advertisingβœ… It's stable.
GetContactShowing names from social mediaQuestionable privacy policies⚠️ Need Root Rights to Full Work
Mi Security (built-in)It does not require installation, it consumes battery economically.Small database, spam numbers only.βœ… Optimized for Xiaomi
SelectordefinitionIt is good to determine bank numbers.It only works for Sber's clients.βœ… No problem.

On Xiaomi with MIUI 12.5+, you can use a combined approach: turn on the built-in Mi Security for spam filtering and additionally install Yandex.Definition for identifying organizations.

  1. Activate Spam Definition in Settings β†’ Memory and Files β†’ Cleanup β†’ Settings.
  2. Install Yandex.Determinator according to the instructions above.
  3. In Yandex settings, disable Spam Blocking to avoid duplication.

Frequently asked questions

Can I use a determinant without Yandex.Mail?
Yes, but the functionality will be limited. A separate application Yandex.Definition (APK) works autonomously, but does not have some functions, such as: Synchronization with the cloud Automatic update of the database Integration with other services of Yandex (Mail, Maps) For full operation, it is recommended to use Yandex.Mail.
Why does Xiaomi 12T only have a detector?
This problem is associated with aggressive optimization of MIUI 13/14 for devices on Snapdragon 8+ Gen 1. Solutions: Add Yandex.Mail to Battery Optimization Exceptions. Turn off the Adaptive Battery function in the developer settings. Set Greenify and add a determinant to the list "don't fall asleep." If the problem persists, try rolling back to MIUI 12.5 (if available for your model).
How to transfer the base of the determinant to the new Xiaomi?
The Yandex.Definition database is tied to the account, so when reinstalling the application on a new device: Log in to Yandex.Mail with the same account. Wait for synchronization (may take up to 10 minutes). If the numbers are not tightened, manually export the call log on your old phone (Settings) β†’ System system β†’ Backup β†’ Call logs) and import on a new one. MIUI 14 to import the journal may require a third-party application, such as Super Backup.
Is it safe to access call logs?
Yandex states that the data is only used for: Identification of incoming calls Spam Filtering Service Improvement (anonymous statistics) For additional security: Use the second number (SIM) to register with Yandex. Turn off Contact Sync in account settings. Regularly check active sessions on the account management page.
Why doesn’t the determinant work on the POCO X3 Pro with custom firmware?
Unofficial firmware (e.g. Pixel Experience or LineageOS) may not include: Google Play Services (e.g. Yandex.Mail) MIUI-specific APIs (e.g. system calls integration) Solutions: Install Open GAPPS (Google Services Package). Use the Universal SafetyNet Fix Magisk module for certification. Try alternatives like Truecaller, which are less dependent on system services.