The sudden disappearance of the caller's name or the "Spam" mark on the Android screen during an incoming call through the Yandex.Numbers Don't Call service most often indicates a failure of access rights or a conflict with the system dialer, and not a breakdown of the application itself. Instead of the expected subscriber identification, the device displays only dry numbers, which critically interferes with screening out scammers or responding to couriers in a timely manner; however, the problem is usually solved by forcing permission to identify the number and checking the status of the application as a default call handler in the security settings of your OS version.
If you recently updated the firmware, the privacy settings may have become stricter. In this case, even previously issued permissions may be revoked by the security system. It is recommended to go through the entire process of issuing rights again, unchecking the boxes and checking them again. This will forcefully restart access services and update authorization tokens between the system and the application.
☑️ Permission diagnostics
Conflicts with other applications and the system dialer
Having several caller IDs on one device - a sure way to failure. If you have simultaneously installed GetContact, Kaspersky Who Calls and the service from Yandex, they begin to compete to intercept the incoming call. The operating system Android does not always handle such collisions correctly, as a result of which none of the applications display information, or the data is replaced randomly.
Custom shells of smartphone manufacturers are especially difficult. Built-in dialers from Samsung, Meizu or Asus may have their own spam databases that block data transfer to third-party apps. In some cases, it is necessary to disable the built-in identifier in the settings of the dialer itself in order to make room for the integration of the Yandex service. Ignoring this step results in the application working, but the data simply is not displayed on the screen.
It is also worth paying attention to antivirus and optimizer applications. They may perceive an attempt to intercept a call as suspicious activity and block the process. If you have a third-party antivirus installed, add the application Yandex to the list of exceptions or trusted apps. This will prevent the determinant service from being forced to stop in the background.
In rare cases, a conflict occurs due to an outdated version of the Google system dialer. If your phone does not receive security updates, older call libraries may not be compatible with the new APIs it uses. YandexIn such a situation, the only way out is to update the system component com.google.android.dialer through the app store or reset the dialer settings to factory settings.
| Type of conflict | Symptom | Solution |
|---|---|---|
| Two qualifiers | Displaying data from another service or empty | Remove unnecessary applications |
| Built-in protection | The application works, but the card does not pop up | Disable native antispam |
| Antivirus | The service constantly stops | Add to exceptions |
| Outdated dialer | Crashes on incoming calls | Update system component |
Database synchronization errors and cache
The correct operation of the detector directly depends on the relevance of the local database on your device. If the application cache is full or the database files are damaged, searching for the number becomes impossible. An application may show that it is active, but when a call comes in, it may not find a match because accessing a corrupted index ends with an error. Regularly clearing the cache is a necessary procedure to maintain stability.
To clear it, go to the application settings and select Storage. Click the Clear Cache button, but don't confuse it with the Clear Data button, which will reset all your settings and require you to log in again. After clearing the cache, it is recommended to restart your smartphone so that the system recreates temporary telephony service files from scratch. This often eliminates interface freezes when there is an incoming call.
Problems can also arise on the side of the company’s servers. If, at the time of the call, technical work is being carried out or API malfunctions are observed, the request for number identification will not receive a response. In this case, the application usually displays the standard call screen without additional information. You can check the status of the servers in official support channels or news aggregators, although such failures usually do not last long. Yandex Maintenance work is being carried out or there are malfunctions in the API, the request for identification of the number will not receive a response. In this case, the application usually displays the standard call screen without additional information. You can check the status of the servers in official support channels or news aggregators, although such failures usually do not last long.
How does the database update work?
The number database is not updated in real time for each user. The application downloads data packets (snapshots) every few days or when connected to Wi-Fi. If the package was downloaded with an error, the new spam database numbers will not go to your phone’s local storage.
Sometimes forced resynchronization helps. Go to the settings of the application itself Numbers are not ringing within the Yandex ecosystem. There may be an “Update Database” button or a similar trigger. Start this process manually while you are in an area with good Wi-Fi coverage, as the update may consume significant bandwidth. Make sure that there is enough free space on the device memory to record new entries.
The influence of the energy saving mode on the operation of the service
Aggressive energy saving algorithms of modern smartphones often become hidden killers of background processes. To extend battery life, the system limits the activity of applications that are not currently on the screen. Caller ID should work in the background constantly, waiting for an incoming call, but the power saving mode can freeze its process, preventing it from processing the call event in time.
In the battery settings, find the application Yandex and change the operating mode to “No restrictions” or “Do not save battery”. The standard “Optimized” mode is often insufficient for services that require instant response to system events. On devices of different brands, this item may be called differently: “Activity control”, “Run in the background” or “Autorun”.
It is also worth checking the settings for adaptive brightness and sleep mode. If the phone goes into deep sleep too quickly, the network connection may drop before the call arrives. In this case, number identification, which requires access to the cloud (if the local database does not contain information), will become impossible. Disabling deep sleep for critical applications solves this problem.
⚠️ Attention: Disabling power saving for background applications increases battery consumption. However, for caller ID to work correctly, this is a necessary sacrifice, since a missed important call can cost more than a few percent of the battery charge.
Some devices have an “Adaptive Battery” feature that learns your habits and limits rarely used applications. If you rarely use your phone for calls, the system may decide that you don't need the identifier and limit its operation. Disable this feature in your global battery settings or add your phone book to your learning exceptions list.
Use the App Lock feature in the recent tasks menu. After opening the Yandex application, swipe it up (or click on the lock icon) to commit it to RAM. This will prevent the system from unloading it if there is not enough RAM.
Features of working on different versions of Android
Each new version of the operating system Android makes changes to the telephony API, which directly affects the operation of third-party detectors. Beginning with Android 9 Pie, Google limited access to call logs, and in Android 10 and above introduced a mandatory requirement for a separate permission to work as an identifier. If you updated your phone recently, the application may simply not adapt to the new system requirements.
On Android 11 and newer, the “One Time Permissions” feature appeared. If you accidentally selected this option when you first launched it, after rebooting Telephony will again lose access to the application. You need to go to the settings and set the permission to “Only when using the application” or “Always”, if the system allows it. Without constant access to the phone's state, the identifier will not work.
Owners of devices are clean Android (Pixel, Motorola) encounter fewer problems than users of custom shells. However, there are nuances here: Google is gradually introducing its own spam filter, which may conflict with third-party solutions. In the latest firmware versions, there is a tendency to completely block access to the system dialer for third-party developers, which makes the work of such applications increasingly difficult.
The newer the Android version, the stricter the restrictions on background work and access to calls. Always check the compatibility of the application with your firmware version in the official store.
If you have a beta version of a new OS installed, stable operation of the detector is not guaranteed. Application developers need time to update their products to new APIs. In such cases, it is recommended to either roll back to a stable version of the firmware, or temporarily use the built-in detection tools until the application update is released.
Account failures and network restrictions
The "Numbers Don't Call" service from Yandex requires authorization for full operation and synchronization of user ratings. If you log out of your account, change your password, or have an authorization token error, functionality may be limited. The application will work in a truncated mode, using only the basic offline database, which may be outdated and not contain information about recent fraudulent schemes.
Check the login status of the application. Try logging out of your account and logging in again by entering your username and password manually. This will update the session keys and restore communication with the server. Also make sure that the application has access to the network: sometimes firewalls or DNS settings block the connection to Yandex database update servers, especially if you are using a corporate network or specific privacy settings.
Restrictions may be imposed by the mobile operator. Some tariff plans or services (for example, Caller ID) may interfere with the operation of applications that attempt to identify the caller. Although this is rare, it is worth checking the connected services in the operator’s personal account. Problems also arise when using a VPN: if the traffic goes through another country, Yandex servers may block requests for security reasons.
- 🌐 Disable the VPN during the call to check whether it affects the operation of the service.
- 🔑 Make sure that the phone number is verified in your Yandex account.
- 📡 Check operation of the detector when switching from Wi-Fi to mobile data.
⚠️ Attention: Terms of use of the service and privacy policy may change. Regularly check for updates in the application, as new rules for the processing of personal data may require repeated consent from the user to activate functions.
Finally, if none of the methods helped, try completely uninstalling the application and installing it again. This ensures that all configuration files are created anew without inheriting errors from the old version. Before deleting, make sure that you remember your account login information Yandex ID.
Why does deleting help?
When you reinstall, not only the settings are reset, but also the bindings to system telephony services. A new instance of the application is registered in the system as a fresh service, receiving priority rights to process calls that could have been lost by the old instance due to software errors.
Frequently asked questions (FAQ)
Why does the caller only work via Wi-Fi, but not on the mobile data?
Rather In general, the application settings prohibit the use of mobile data to update the database or work in the background. Check the "Data transfer" item in the application settings and allow the use of background traffic for mobile networks. It is also possible that you have reached your traffic limit and the system has limited your speed.
Is it possible to use the Yandex ID on two SIM cards at the same time?
Yes, the service supports working with several active SIM cards. However, in the dialer settings, you need to make sure that the caller is assigned as the main one for both lines. Sometimes you need to restart the phone after changing the active SIM card to correctly initialize the service.
The identifier shows the wrong name or organization, how can I fix it?
The caller card inside the application usually has a “Suggest an edit” or “Complain” button. You can send the correct information to the Yandex database. After moderation (usually 1-3 days), the data will be updated for all users. You cannot change the database locally yourself.
Why did the application stop detecting numbers after updating Android?
System updates often reset permissions. Go to settings, find the application and manually re-grant all rights, especially “Caller ID” and “Phone”. If the problem persists, check for updates to the application itself in the store.
Is it safe to give the application access to all contacts?
For the "Who's Calling" feature to work, access to contacts is necessary to check numbers against your address book and show the names of saved callers in Yandex's corporate style. The service's privacy policy guarantees data protection, but you can limit access to read-only by prohibiting writing changes.