How to Make a Full Screen Call on Xiaomi: The Complete Guide

Modern Xiaomi smartphones, which are based on MIUI or HyperOS shells, offer users a lot of options for customizing the interface. However, sometimes after updating the system or buying a new device, users are faced with an unusual display of incoming calls. Instead of the usual full-screen interface that covers the entire display, the caller is displayed as a small floating window or banner at the top of the screen. This creates inconvenience, especially when you need to quickly answer a call or see full contact information.

This behavior often confuses those who are used to the standard logic of Android. In fact, it is not a bug or bug, but a special feature that can be activated by default in some regions or firmware versions. Full-screen call mode allows you to better see the subscriber's photo, volume control buttons and additional options during a conversation. You can return the usual interface appearance by making changes to the phone's system settings.

In this guide, we will go into detail all the ways to make incoming full-screen calls on Redmi, POCO and Xiaomi smartphones. We will look at both standard methods through the settings menu, and deeper solutions to the problem if simple actions do not help.

Why the call stopped on the full screen

Before we get into action, it’s helpful to understand why the interface behavior changes. Often users notice changes after automatic system updates. Xiaomi engineers can change the logic of system applications by introducing new design elements designed to improve multitasking. However, for many device owners, the classic type of dialing remains a priority.

Another common cause is a malfunction of the cache of the system application "Phone". Accumulated temporary files can conflict with the current version of the shell, causing incorrect display of graphic elements. App cache is a temporary data store that speeds up the program, but sometimes requires cleaning for stable operation.

Also, it’s worth considering that some global firmware versions have Google Phone installed by default, and it has its own display settings that may be different from what you’re used to in the stock MIUI Dialer. Understanding which app handles your calls is key to solving the problem.

⚠️ Note: If you recently upgraded your system and the interface changed, don't rush to reset your settings. 90% of the time, the problem is solved by simply reconfiguring the call display settings.

Configure through the system application "Phone"

The easiest and safest way to get back to full screen is to check the settings of the call app itself. Depending on the version of the MIUI shell or HyperOS, the path to the desired switch may be slightly different, but the overall logic remains the same. You don't need superuser rights or a computer connection.

To start, open the app you normally call through, find the menu icon that most often looks like three dots in the corner of the screen or a gear settings, and that's where the settings that control the interface's appearance during incoming or outgoing connections are hidden.

In the settings that open, you need to find the item that handles incoming calls, which can be called Incoming Calls, Response Mode, or similarly named. Within this section, there is usually a switch that allows you to choose between Full Screen and Notification (or Floating Window) mode. Select Full Screen to make changes effective immediately.

• 📱 Open the phone application (green handset).
• ⚙️ Click on three dots or a gear in the corner to enter the settings.
• 🔍 Select "Settings" or "Call Options».
• 🖥️ Find the Incoming Calls section and set the Full Screen mode».

After making changes, you should check the result, ask someone to call you or use the number check feature if it is available in your area, and if the interface is back to normal, the problem is solved.

Use of the Google Phone application

On global versions of Xiaomi smartphones, the standard caller is often a Google app, which is minimalist in design and deep integration with search engine services, but its settings can be hidden deeper than in the native MIUI app.

To set up a call to Google Phone, open the app and tap the three dots in the top right corner. In the drop-down menu, select Settings. Then scroll down to Incoming Calls. Here you will find an option that allows you to control the size and behavior of the call window.

If you have the latest version of an app installed, the interface may offer a choice between Full Screen Mode and Notification Mode. In some cases, the switch may be called Full Screen Show. Activating this feature will cause the system to deploy the call interface to the entire display area, blocking other applications until the conversation is over.

It is important to note that the Google Phone app is regularly updated through the Play Market store.If you don't find the settings described above, your version of the app may be outdated.Updating to the latest version often returns missing features or adds new customization features.

Managing permissions and screen access

Sometimes the problem lies not in the settings of the application itself, but in the system permissions of Android. The operating system strictly controls which applications have the right to block the interface of other programs. If the phone is revoked the right to display over other windows, the call will appear as a regular notification.

To check this setting, go to the general smartphone settings. Find the Apps or Application Management section. From the list of installed applications, find your calling app (whether it's MIUI Dialer or Google Phone).

You are interested in an option that may be called “Display on top of other apps”, “Pop-ups” or “Draw over other apps”. Make sure the switch opposite this item is activated (blue or green). Without this permission, the system will block the full-screen deployment of the call interface for security or resource saving.

• 🔐 Go to Settings. → Annexes.
• 📞 Find the "Phone" app in the list».
• 👁️ Go to the section "Other permissions».
• ✅ Include the item “Display on top of other applications».

⚠️ Warning: Do not turn off permission to display over other windows for system applications unless you are sure of the consequences.This can disrupt alarm clocks, timers and, of course, calls.

Also, check your notification settings. Go to the notification section for the Phone app and make sure that the High or Urgent priority is set for the Incoming Calls category, which ensures that the system interrupts current tasks to show the call screen.

Resetting settings and data cleaning

If manual settings failed, the application may have suffered a software failure, in which case the effective method is to reset the application to factory settings, removing the call history and contacts from the call cache (but not from the phone book), and returning all system flags to their original state.

You can do this through the application management menu. Go to Settings → Apps → All apps. Find the phone list and click on it. At the bottom of the screen or in the menu "More" select the "Clean" button. It is important to choose "Clean all" or "Clean data" rather than just "Clean cache", although you can start with a cache.

Once the data is cleaned, the app will restart as new. You don't have to re-enter contacts, as they are stored in a separate Contacts repository or in a Google/Mi Account. However, the history of recent calls will be deleted. This method often helps when the interface is stuck in mini window mode due to a program logic error.

The way to discharge:


Settings -> Applications -> All Apps -> Phone -> Clean -> Clean everything

In some cases, especially on custom firmware or after unsuccessful updates, a deeper cleanup may be required. You can try to remove updates to the Phone app (if it is a Google system app), returning it to the factory version, and then update again through the store.

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Before clearing the application data, make sure your contacts are synced to the cloud. Go to Contacts -> Settings -> Sync to make sure the numbers are safe.

Specifics of work in HyperOS mode

With the release of the new HyperOS shell, which is gradually replacing MIUI on new and updated devices, some menu items have been reorganized. The logic of the work remains the same, but the visual design and partition names may have changed. HyperOS users should pay attention to the combined settings menu.

In HyperOS, call settings are often integrated into the general Special Features section or placed in a separate menu inside the call itself under the new design. If you can't find the full-screen switch, try searching by settings. Type the word "Inbox" or "Screen" into the search bar and the system will suggest the item.

HyperOS also improves screen cutouts and selfie cameras. If you have a smartphone with a hole in the screen, make sure that the display settings (cut and refresh rate or similar) do not set a limit for the Phone app, which can be a window mode. In HyperOS 1.0 and later, a bug with a call window is often solved by simply switching the theme to a standard one.

• 🆕 Update the Phone app to the latest version in GetApps or Play Market.
• 🎨 Try changing the theme to standard (classic).
• 🔍 Use Settings Search to Quickly Access Call Parameters.
• ⚙️ Check the “Special Opportunities” section for conflicting settings.

It’s worth remembering that new shells are often in the development phase, and if the issue is seen right after a major HyperOS update is released, it may be a temporary bug that will be patched in the next security patch.

Additional solutions and alternatives

In rare cases, standard methods may not work due to deep system conflicts or the features of a particular smartphone model. If none of the above methods worked, you can try installing an alternative application for calls from the Google Play store. There are third-party calls that completely replace the standard interface and offer their own options for displaying calls.

However, using third-party apps has its nuances: they may not support all of your carrier’s features, such as VoLTE or video calls, or work less consistently. Therefore, this method is recommended only as a last resort.Be sure to read other users’ feedback about the app’s compatibility with your Xiaomi model before installing it.

And also, remember the trivial reboot of the device, because once you've made any adjustments, especially those related to permissions and system applications, the full cycle of turning off and on the smartphone helps you apply the changes correctly, and sometimes it takes time for the system to rewire the graphical interface.

⚠️ Warning: When installing third-party calling apps, carefully monitor the permissions requested. Do not give access to contacts and microphone to unverified programs from unknown developers.

If the problem persists even after all the manipulations, there may be a hardware defect in the proximity sensor or display that does not respond correctly to touch during the call, in which case it is advisable to contact an authorized service center for diagnosis.

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In most cases, the problem is solved by switching one switch in the settings of the Phone application or cleaning its data. Don't ignore the simple solutions.