Changing the visual design of a smartphone is one of the easiest and most effective ways to personalize your device. Xiaomi Redmi 9 owners often face the desire to replace the standard incoming call interface with a more modern or simply beautiful one. The standard MIUI shell provides basic features, but they can seem limited to advanced users looking for uniqueness.
The replacement process does not require superuser rights or complex manipulation of system files. Just use the built-in system tools or proven third-party solutions from the official app store. In this article, we will discuss in detail all available methods that will allow you to radically change the appearance of the incoming call screen.
It’s worth noting that some methods may vary slightly depending on the version of the firmware installed, but the general principle of action remains the same for the entire line of Android devices, you can choose the option that suits you, from simply changing the theme to installing specialized applications-callers with advanced functionality.
Standard features of the theme design in MIUI
The safest and easiest way to change the visualization of a call is to use the built-in Theme app. In the Xiaomi ecosystem, this tool allows you to change not only icons and wallpaper, but also system sounds, fonts, and the design of the lock and call screen.
In the search bar, type in a query related to your desired style, such as "Call Screen", "Dialer" or simply the name of a popular theme. The system will offer a variety of options, including both minimalist designs and animated solutions with a video background. It is important to pay attention to the compatibility of the theme with your version of MIUI to avoid conflicts.
⚠️ Note: When installing themes from third-party sources or unofficial stores, there is a risk of system stability being compromised. Use only proven resources or an official Xiaomi catalog.
After selecting the appropriate option, click the Download button and then Apply. The system will automatically apply all the components of the theme, including the new call screen. If you want to change only the call without affecting the other elements, select the "Select elements" option when applying the theme and select only the desired components.
Use of third-party applications for calls
If you don't have the built-in capabilities, Google Play Market apps will come to the rescue. There are many programs that completely replace the standard call, offering flexible interface settings, spam blocking and recording conversations. One of the most popular solutions is the Truecaller app or Call Screen - Video Caller ID.
To install this app, download it from the store, launch it, and grant the permissions you need. It's critical to give it access to contacts, to the microphone, and most importantly, to allow it to be displayed over other windows. Without this, the new call screen simply won't appear during the incoming call.
Once you have set up the app, it will be the default for all incoming and outgoing calls, so you can choose themes within the app, customize contact avatars, and even set up full-screen video, which gives you much more freedom than the standard Redmi 9 tools.
☑️ Setting up a call app
Configure access rights and permissions
The key to changing the call screen is to properly configure security permissions. The Android operating system on which MIUI is based strictly controls how apps access phone features. If you don't adjust those settings, the new interface may not work properly or show up at all.
Go to the Settings menu → Annexes → All applications. Find the installed call or theme app in the list. Click on it and select "Permissions." You need to activate all the requested items, especially those related to telephony and contacts.
Pay special attention to "Other permissions" or "Special features." Some firmware versions require manual permission to "Master on top of other applications." Without this, the system interface will block the call pop-up window.
| Type of permit | What do you need? | Status |
|---|---|---|
| Contacts | Displaying the caller's name | I'll be sure. |
| Phone. | Incoming call processing | I'll be sure. |
| Microphone | Recording of conversation (optional) | If you wish, |
| Over the other windows. | Output of the call interface | Critically. |
What to do if permissions are reset?
Installation of video beeps and live wallpaper
Modern smartphones, including Redmi 9, allow you to set dynamic wallpaper and video beeps, which creates the effect of a live call screen, where instead of a static picture, you play a video, and you can implement this through special widget applications or theme functions.
Applications like Video Caller ID are often used to install the video beep. Once installed, select the video from the gallery or download the finished clip from the application's built-in library. Pay attention to the format and resolution of the video: vertical video with a resolution of 1080×1920 pixels will be optimal.
Using video wallpapers can increase battery consumption, as the screen and processor will be active while waiting for a call. It is recommended not to install too long or heavy video files, so as not to overload the device's RAM.
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Use short video fragments 5-10 seconds long for the call screen, which will ensure a quick loading of the interface and reduce the load on the battery of the smartphone.
Possible problems and ways to solve them
Users may encounter a number of technical difficulties in customization, such as when a new theme is installed, the call may come with a standard black screen, or the new call interface may be overlaid on top of other windows incorrectly, most often by clearing the app cache.
If the new call screen doesn't show up, try restarting the device. In rare cases, a conflict of Android versions and apps can lead to crashes. Make sure the application you're using is compatible with your OS version.
It’s also worth checking whether Do Not Disturb or Traffic Saving modes are enabled, which can block background services. Disabling battery optimization for a caller app often helps solve an unstable work problem.
⚠️ Warning: If after installing a theme or app, the phone starts to work slowly or there are errors in the system, immediately remove the last installed component and restart.
Comparison of methods of changing the interface
To sum up, there are major differences between using MIUI themes and third-party applications: Themes integrate deeper into the system and look more native, but offer fewer functionality; apps give full control over design and features, but can consume more resources.
The choice of method depends on your priorities: if stability and uniformity of style are important, choose themes. If you want a unique design with video and advanced features, install a separate application. In any case, the Xiaomi Redmi 9 has enough power to support both options.
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The optimal balance between beauty and performance is achieved by using light themes from the official store, not overloaded with heavy animation.