Incoming full screen call on Xiaomi Redmi: the full guide

Owners of Xiaomi and Redmi smartphones often face a situation where the call interface stops showing over all windows or does not occupy the entire display area. This can occur after a MIUI update, resetting settings or installing third-party applications. Full-screen incoming call mode is not just a matter of aesthetics, but the need for quick access to the response buttons or drop the call.

Modern HyperOS shells and earlier versions of MIUIs have a flexible permission system that sometimes blocks standard system behavior to save energy. A critical parameter is the resolution to display on top of other applications, without which the lock screen may not activate. If you can't see the subscriber on the full screen, then one of the system constraints is working against you.

In this article, we will explore all the possible causes of the disappearance of the full-screen interface and offer step-by-step solutions, learn how to manage system resolutions, customize the design theme and eliminate software conflicts. It is important to understand that the settings may vary slightly depending on the firmware version and region.

Diagnostics of a problem with displaying calls

Before you start to act, you need to understand the nature of the failure. Often users confuse the lack of full-screen mode with the fact that the screen just does not light up when you call. In the first case, you see a notification in a curtain or a small window, in the second case, the phone is silent and vibrating in your pocket. The proximity sensor and lock screen settings play a key role here.

One common cause is design conflict. Third-party themes downloaded from Themes can change the system files that govern the telephony interface. If the problem occurs immediately after the visual style change, it's worth going back to the standard theme, and it's worth checking if you have a "Do Not Disturb" or "Blocking Aliens" mode that may be hiding the interface.

⚠️ Attention: If the screen doesn't light up at all when the call is in, the problem may not be in the software interface, but in the proximity sensor.

Diagnostics should start by checking the basic display settings, making sure that the system does not activate power saving modes that aggressively restrict the background operation of applications, sometimes just restart the device to reset temporary errors of the SystemUI process.

Configure permissions of the "Phone" application

The most common reason why an incoming call doesn’t open full-screen on Xiaomi is because of permissions: Android requires explicit confirmation from the user to display windows on top of other applications. Without that, the system app Phone doesn’t have the right to take control of the display.

To correct this, you need to go to the app settings. Find a standard call (usually called a Phone or has a Google/MIUI logo) on the list. Inside the app menu, you are interested in the permissions section. Here, you need to find the item "Master on top of other apps" or "Pop-ups" and activate it.

Also worth noting is Autostart. If it's disabled, the system can kill the call process in the background to save battery, and when an incoming call is made, the application will not have the resources to deploy the interface.--work.

Remember to check the permissions for the Contacts app if it is used as a separate module. Sometimes it is the contact database that blocks the correct call to the subscriber card interface. After making changes, be sure to restart the device.

Managing notifications and lock screen

The incoming call interface is closely related to Android's notification mechanism. If the notification settings for the Phone app prohibit display on the lock screen, you won't see the Caller ID full screen until you unlock the device. This is a frequent privacy setting, but it interferes with user-friendly use.

Go to the notification menu for the Phone app. Make sure that the Incoming Calls category is active. Inside this category, the Lock screen switch should be turned on. It is also recommended to choose the display style of Banner or Pop-up Notification if the standard mode does not work.

Some versions of MIUI have a separate lock screen notification setting in the general settings of the system, which takes precedence over the settings of individual applications, and if the global ban is active, no application will be able to display information on the locked display.

💡

If the interface still doesn't appear after setting permissions, try changing the theme to the standard one in the Themes app. Third-party skins often break the system call windows.

Special features settings and interface

Special features can dramatically change the behavior of the interface, for example, zoom in or monophonic sound sometimes conflict with the rendering of full-screen windows" →"Special features and disable unused functions.

Special attention should be paid to the font size and display settings. If the Screen section has too large a font or changed the screen resolution (DPI), the incoming call card may simply not fit in the designated area or go beyond the limits of visibility. Return zoom to the default value.

There is a hidden setup through the engineering menu or ADB that compels you to display calls, but it requires caution, and it is safer for the average user to use the standard interface resetting tools.

⚠️ Note: Do not change the parameters DPI (pixel density) in the Developer menu without needing it, which can make Accept and Reject buttons unavailable to press.

Also check if the One-Hand mode or similar controls are on, which can reduce the screen workspace, making the call window appear cropped or offset, and disabling these functions will return native behavior.

Conflicts with messengers and third-party calls

Often users install alternative calling apps such as Truecaller, GetContact or third-party apps. DIY-These apps intercept call management, and if you have multiple apps that are "default phone," the system may be confused about which window to display.

Check the default application settings in the Advanced section. Make sure you select a standard system call. If you use a third-party number detector, make sure it has all the necessary rights, but it does not conflict with the system shell.

• 📱 Truecaller: Often requires you to turn on the overlay in your internal settings, otherwise the call window will not appear.
• 📞 GetContact: Can replace the standard interface with its own, which on some Redmi models works unstablely.
• 🛡️ Antivirus: Adblockers and antiviruses can block pop-up calls, considering them suspicious activity.

If you don't use third-party identifiers, delete them or disable the Call Interface Replace feature inside their settings, which will return control to the standard MIUI Dialer or Google Phone app.

Resetting settings and cleaning the system cache

If the software settings don’t help, there are probably errors in the cache of system services. Clearing the data of the Phone application will not delete your contacts (since they are stored in a separate Contacts app or in a Google account), but will return the settings of the calls to the factory.

To perform the reset, go to Settings → Applications → All Apps → Phone. Select Clear and then Clear All Data. A similar procedure is recommended for the Contacts application and System UI process, if available for cleanup.

In extreme cases, if the problem is global and affects the entire MIUI interface, you may need to completely reset your smartphone settings.Be sure to back up all important data before doing so, as this procedure will delete all files and applications.

⚠️ Attention: Clearing the phone application data will reset the call history and redirect settings. Make sure that important numbers are saved in the cloud or on the cloud. SIM-pre-procedure map.

After cleaning the cache and data, be sure to restart the device. The first run may take longer, as the system will re-index services.

Frequently Asked Questions (FAQ)

💡

Regular updates to the Phone and Google Play services app via the Play Market often resolves the problems with the compatibility of the call interface on new versions of Android.