The situation when the phone vibrates or makes a sound, but the screen remains black and you cannot see who exactly is calling, causes panic and irritation. This is a common problem in the ecosystem Androidthat can be caused by either a software glitch or incorrect interface settings. The lack of a visual notification is critical, especially if the phone is in silent mode or is lying face down.
In most cases, the reason lies in an application conflict, outdated system components, or an accidental change in notification display settings. Users often encounter the fact that after updating the firmware or installing a new launcher, the familiar call screen disappears. In this article, we will analyze in detail the diagnostic algorithm and methods for restoring functionality so that you no longer miss important calls.
Ignoring this malfunction can lead to the loss of business contacts or missed emergency calls. Therefore, it is important to quickly identify the root of the problem, be it a malfunction Phone system application or cache memory corruption. We will look at solutions from simple reboots to more complex manipulations with access rights and data clearing.
Basic checks of notification and screen settings
First of all, you need to make sure that the call display feature has not been accidentally disabled in the system settings. In modern shells, such as One UI from Samsung or MIUI from Xiaomi, notification settings may be reset after major updates. Go to the settings section and check whether the item responsible for showing the screen during a call is activated.
Often the problem is solved by simply checking the Do Not Disturb mode. If this mode is activated, the phone can block the visual display of incoming connections, allowing only selected contacts to pass through. Make sure that the exceptions do not have too strict restrictions that turn the smartphone into a “brick” at the moment of an incoming signal.
It is also worth paying attention to the screen lock settings. Some security systems hide notification content on a locked display by default for the sake of privacy. You'll need to change the Show Notifications setting to Show All or similar so that the caller's name is visible right away.
- 🔍 Check the Notifications settings for the Phone app and make sure the Incoming Calls category is not disabled.
- 🔕 Turn off Do Not Disturb or set exceptions for everyone contacts.
- 🔒 In the “Screen Lock” section, allow the display of confidential information.
⚠️ Attention: On some models with AMOLED screens, the Always On Display function may conflict with the call screen. Try temporarily disabling the constant display of time and date in the screen settings.
If you have a third-party launcher (shell) installed, try temporarily switching to the standard system launcher to eliminate interface conflicts.
Crashes in the “Phone” application and clearing the cache
The main culprit for the lack of pictures The call is often the application itself that is responsible for making calls. Over time, temporary files accumulate in its memory, which can become damaged and cause the interface to display incorrectly. Clearing the cache is a safe procedure that will not delete your contacts or call history, but it will reset temporary data.
To perform this operation, go to the settings menu of your smartphone, find the “Applications” section and select there Phone (or Phone). Inside the application menu, find the "Storage" or "Memory" button. This is where the tools for managing app data are located.
Press the button Clear cache. If this does not help, you can try a more radical method - Clear data. Be careful: on some versions of Android, this action may reset your dialing preferences or pinned contacts, although the phone book itself is usually stored in the cloud. After cleaning, be sure to restart the device.
| Action | Impact on contacts | Impact on call history | Recommended frequency |
|---|---|---|---|
| Clear cache | No | No | When glitches occur |
| Clear data | Usually no (if there is synchronization) | Local history can be deleted | Only in case of critical failures |
| Forced stop | No | No | As the first diagnostic step |
It is important to understand that if you are using a third-party dialer from the Google Play Store, for example, from Truecaller or another developer, the procedure must be carried out specifically for this application. System settings may not apply to apps installed manually by the user.
☑️ Diagnostics of the Phone application
Conflicts with third-party applications and access rights
Modern smartphones are overloaded with software, and some apps can intercept screen control or block the display of system windows. Messengers, antiviruses, apps for recording conversations or memory cleaners often require the right to display on top of other windows. If such an application freezes, it may create an invisible layer on top of the call screen.
Check the list of applications that have permission "On top of other applications" (or Draw over other apps). Disable this right for all suspicious apps that are not critical to the system. Often the culprits are screen recording applications or voice recorders running in the background.
Another reason is a conflict between the standard phone book and Google synchronization or the manufacturer's account (Samsung Account, Mi Account). If a contact cannot be loaded correctly due to a synchronization error, the system may not render the caller card. Try temporarily disabling contact synchronization in your account settings.
⚠️ Attention: Details of the location of the access rights menu may vary depending on the version of Android and the manufacturer's shell. If you do not find the item in the specified location, use the search in the settings.
How to find the culprit application?
Boot the phone in safe mode. If calls are displayed correctly in this mode, then one of the applications you installed is causing the problem. Uninstall recently installed apps one at a time until the problem goes away.
Problems with the proximity sensor and protective glass
Sometimes the screen does not light up not because of a software glitch, but because of a false alarm from the proximity sensor. This sensor is located at the top of the screen and is designed to dim the display when you hold the phone to your ear. If the sensor is dirty or covered with low-quality protective glass, the phone may “think” that it is already at the ear and not turn on the screen when making a call.
Wipe the top frame of the smartphone with a soft cloth, paying attention to the area around the earpiece and front camera. Even a thin layer of skin oil or dust can distort the infrared sensor readings. Also check whether the protective film or glass is blocking the sensor area.
In some cases, sensor calibration is required. On devices Xiaomi or Samsung there are engineering menus or special codes for checking the operation of the sensors. You can enter the code #0# (for Samsung) or use the app Engineering Modeto test the proximity sensor's response to closing with your hand.
- 🧹 Thoroughly wipe the top of the screen with an alcohol wipe.
- 🛡️ Make sure the protective glass is not cracked sensor area.
- ⚙️ Test the proximity sensor through the engineering menu.
If the sensor is physically faulty, the screen will turn off instantly with any hand movement near the top edge. In this case, only replacing components in a service center will help, since it is difficult to programmatically bypass a completely failed sensor.
A dirty proximity sensor is the most common physical reason that the screen remains black during a call, even if the system is working properly.
The influence of energy saving and background restrictions
Aggressive power saving settings can “kill” the process of a phone application before it has time to expand the interface to full screen. The system tries to save battery power by limiting background services, which leads to delays or complete absence of visual call notification.
Go to the battery settings and find a list of optimized applications. Add the application Phone and Contact to the list of exceptions or set the operating mode to “No restrictions”. This will allow the system to keep these processes active even in deep sleep mode.
This problem is especially relevant for Chinese versions of smartphones, where memory managers work extremely harshly. If you have a brand phone Honor, Huawei or Oppo, be sure to go to the task manager, find the dialer application, click on the lock to save it in memory. This will prevent the process from automatically unloading.
⚠️ Warning: Disabling battery optimization for many apps may reduce your device's battery life. Apply this setting selectively only for critical system services.
System updates and factory reset
If none of the above methods helped, the system may have accumulated critical errors after an unsuccessful firmware update. Check for new system updates in the menu Settings → About phone → Software update. Developers often release patches that fix bugs with the interface and calls.
In extreme cases, when the problem is global in nature and interferes with normal operation, resetting to factory settings will help. Before this procedure, be sure to create a complete backup of all data, as the process will delete all photos, applications and files.
Settings → System → Reset → Delete all data (Factory Reset)After the reset, the phone will return to its “out of the box” state. If the problem persists even on a clean device without third-party apps installed, this most likely indicates a hardware malfunction of the display or cable.
What to do before resetting?
Be sure to synchronize your contacts with your Google account, save photos to the cloud and write down passwords for important applications, since you will be able to recover them without a backup impossible.
Frequently asked questions (FAQ)
Why does the screen go blank immediately after the call starts, although I have not yet raised the phone to my ear?
Most likely, the proximity sensor is dirty or covered with protective glass. It is also possible that the phone case is blocking the sensor. Try removing the case and wiping the top of the screen.
Can a virus block the screen of an incoming call?
Yes, malware with window overlay rights can block system notifications. Check your phone with an antivirus and remove suspicious applications that were not downloaded from the official store.
Why is the call not visible on the locked screen, but appears on the unlocked screen?
This is a privacy setting. Go to Settings → Notifications → On the locked screen and select the option “Show notifications in full”.
Will deleting updates to the Phone application help?
Yes, if the problem appeared after the auto-update of the dialer. Go to the application settings, click the three dots in the corner and select “Uninstall updates.” The system will return the factory version of the app.
Does the power saving mode affect the display of calls?
Yes, in severe energy saving mode, the system can limit the operation of background processes, which is why the call interface does not have time to load. Turn off the economy mode to check.