Do you encounter a situation where the phone rings, makes a sound or vibrates, but the screen remains dark and you cannot see who exactly is calling you? This is a critical nuisance that can cause you to miss an important conversation, especially if the device is in a bag or in a noisy room. The problem when the call is not displayedis one of the most common complaints of users of smartphones based on the operating system Android.
The reasons for this behavior can vary from a banal failure in the “Phone” system application to conflicts with third-party launchers or incorrect notification settings. In some cases, the culprit is the power-saving mode, which aggressively “kills” background processes. Let's take a look at why the incoming call interface disappears and how to return full functionality to your gadget.
The situation is aggravated by the fact that smartphone manufacturers (Samsung, Xiaomi, Huawei) often modify the standard interface Android, adding their own shells. This leads to the fact that the paths to settings and the names of menu items may differ. However, the logic of the system remains the same, and methods for solving the problem are in most cases universal for all devices.
Failures in the “Phone” application and the cache
The most common reason why the call screen does not appear on top of other windows or the locked screen is a software failure of the application itself that is responsible for calls. Over time, temporary files accumulate in the application's memory, which can become corrupted and cause a conflict. You need to clear the cache and data.
To do this, go to the settings of your device and find the section Applications or All applications. In the list, find the “Phone” item (often it has a handset icon). It is important not to confuse it with contacts or call history, although resetting all three components is often recommended in a comprehensive manner. Inside the application menu, find the section Storage.
Here you will see two buttons: “Clear cache” and “Clear data”. Clicking the first button is safe and only deletes temporary files. The second button will reset your dialing settings and call history within the app, but will not delete your contacts from your phone book. After completing these steps restart your smartphone and check the operation of your inbox.
☑️ Diagnostics of the Phone application
⚠️ Attention: Before clearing the Phone app data, make sure your contacts are synced with your Google account to avoid losing your call history if it is not saved in the cloud.
Problems with permissions and window overlay
Modern versions Android have strict security systems that require applications to have special permissions to display information on top of other apps. If the Phone app's permission to create pop-ups is revoked, you'll hear a ringing sound, but the interface won't appear. This often happens after a system update or factory reset.
You need to check whether the phone has the right to show notifications and windows on top of other applications. Go to Settings → Applications → Phone → Advanced (or the “Advanced settings” section). Find item Appear on top of other applications or Pop-up windows. Make sure the switch is activated.
It's also worth checking notification permissions. Go to Settings → Notifications → Status bar and make sure display priority is turned on for the Phone app. Sometimes it helps to completely disable and re-enable all permissions for this application so that the system registers requests again.
If you have a third-party launcher (shell) installed, try temporarily switching to the standard system launcher. Third-party shells often block system pop-ups.
Particular attention should be paid to the screen lock settings. In some shells, for example in MIUI ot Xiaomi or One UI ot Samsung, there are separate checkboxes in the security menu that prohibit the display of notification content on the locked screen for privacy purposes. Check if the “Hide Contents” mode is activated.
The impact of energy saving and battery optimization
Aggressive battery saving algorithms are the scourge of modern smartphones. The system may treat the Phone application as a background process that is not needed right now and limit its activity. As a result, when there is an incoming call, the system simply does not have time to “wake up” the call interface.
To exclude this factor, you need to add the phone book and the call application to the list of exceptions or “non-optimized” applications. The path to this setting usually lies through Settings → Battery → Battery optimization (or “Charge consumption”). Find “Phone” in the list and select the option Do not optimize or No restrictions.
Also check if the “Ultra Energy Saving” or “Super Saving” mode is enabled. In these modes, most functions are limited and the full call screen may not be displayed. Disable such modes for testing. If the problem disappears, then the problem was in the power settings.
| Operating mode | Impact on calls | Recommendation |
|---|---|---|
| Normal mode | Full functionality | Use constantly |
| Energy saving | Possible interface delays | Disable when waiting for an important call |
| Ultra-saving | Blocking background processes | Do not use daily |
| Airplane mode | Complete lack of connection | Check shutdown |
Conflicts with third-party applications
Sometimes the culprits are The incoming call screen does not appear, third-party apps that you installed recently become. These could be caller IDs, spam blockers, instant messengers, or even call recording applications. They are trying to intercept the call and may not do it correctly.
Try to remember what applications you installed before the problem occurred. apps like Truecaller, GetContact or various system “cleaners” are especially suspicious. Try removing them or temporarily disabling their phonebook integration features.
Safe Mode is an excellent diagnostic tool. In this mode, only system applications are launched. If calls are displayed correctly in safe mode, then the problem is guaranteed to be in third-party software. To enter this mode, you usually need to hold down the power button, and then long press the “Power” option on the screen until you are prompted to enter safe mode.
⚠️ Attention: Interfaces vary from manufacturer to manufacturer. On some models, to enter safe mode you need to hold down the physical volume buttons during boot. Check the instructions for your smartphone model. Android-smartphone.
Theme and lock screen settings
It would seem like a small thing, but installing custom themes can break the display of system windows. If you used third-party themes from the theme store (for example, MIUI or ColorOS), try reverting back to the default theme. Unofficial themes often do not take into account all system dialogs.
Also, the problem may lie in the settings of the lock screen itself. Go to Settings → Lock screen. Check the Clock Style or Notification Style option. Sometimes choosing a certain style hides application icons or makes them transparent on a certain background, which creates the illusion of no call.
Make sure that the function Show notifications on the lock screen is turned on and set to “Show all” or “Hide sensitive”, but not “Not show at all." This is a basic setting that can be easily changed accidentally.
Hidden setting in the engineering menu
In some cases, resetting the settings through the engineering menu helps. Enter the code ##4636## in the dialer. Go to “Phone Information” and try switching the network type or resetting the radio module settings. Do this with caution!
Radical measures: resetting network and system settings
If none of the above methods helped, the system files responsible for the operation of the radio module and interface may be damaged. In this case, you should try resetting your network settings. This action will delete saved Wi-Fi passwords and Bluetooth settings, but will return the factory communication settings.
Find the section System → Reset settings → Reset Wi-Fi, mobile data and Bluetooth settingsin the settings. Confirm the action. After the reboot, the phone will search for the network again, and the call configurations will be updated. This often solves problems with software glitches of the communication protocol.
As a last resort, if the problem persists, you may need to completely reset the device to factory settings (Hard Reset). Remember that this will delete all data from the phone. Before doing this, be sure to back up your contacts, photos and documents. If this does not help, most likely the problem is hardware in nature (malfunction of the screen cable or touchscreen) and requires a visit to the service center.
If resetting to factory settings did not solve the problem with displaying the call, there is a high probability of a physical malfunction of the display module or power controller.
Frequently asked questions (FAQ)
Why is there a call, but the screen is black only when the phone is locked?
This indicates a problem with the lock screen settings or the permission to show notifications in sleep mode. Check the Lock Screen Notifications section and turn off Deep Battery Optimization for the Phone app.
Can a screen protector interfere with ringing?
Yes, a low-quality or too thick screen protector can create “dead zones” at the edges of the screen. If the Accept button is in such an area, you won't be able to swipe and the interface may appear to be broken. Try removing the glass to check.
Why did the call screen disappear after updating Android?
System updates often reset application permissions. Re-grant the Phone application all the necessary rights, especially the right to “Appear on top of other windows”, which may have been disabled by the security system after the update.
Does the Do Not Disturb mode affect the display of the call?
The Do Not Disturb mode usually does not hide the call interface itself, but only turns off the sound and vibration. However, some custom firmware has settings that allow you to hide visual notifications in this mode. Check the rules of the Do Not Disturb mode.
What to do if the screen goes blank immediately during a call?
This may be a faulty proximity sensor. It's located next to the speaker and turns off the screen when you hold the phone to your ear. If the sensor is dirty or broken, it may think that the phone is already at the ear and immediately turn off the display when it comes in. Wipe the top of the screen.