Smartphones are no longer just a means of communication, but they are a tool for self-expression. Owners of low-end but functional devices like the Xiaomi Redmi 9A often want to personalize the interface to make it look unique and fresh, and one of the most spectacular ways to do this is by setting a dynamic background on an incoming call instead of a standard static image.
The process of changing a static image to a video wallpaper requires understanding the MIUI system on which the smartphone shell is based. Unlike simple models, it is not always enough to simply select a file from a gallery, since the system requires the use of a special component to play the video sequence during a call, which ensures smooth operation and saves battery life.
In this article, we will discuss in detail all the available methods for implementing this feature, learn how to use the built-in system tools, where to look for quality rollers and how to avoid common errors when setting up. Follow the step-by-step recommendations to make your Redmi 9A stand out among other devices.
Features of MIUI system and support for video calls
Xiaomi’s Android operating system has its own architectural features, and Video Wallpaper is native to many of the brand’s models, but it may work differently depending on the firmware version. On the Redmi 9A, this functionality is implemented through the system application, which is responsible for multimedia design.
It's important to understand that installing video on a call is different from installing a regular live wallpaper on a desktop, and it involves a separate process that must be triggered instantly when an incoming signal arrives, and if you use heavy high-resolution files, it can delay the display of the contact or even miss the first seconds of the call.
⚠️ Attention: Use of high-resolution video backgrounds (4K) can significantly increase battery consumption during incoming calls.
System constraints also apply to file formats: rollers in MP4 containers with H.264 codec work most stably; other formats may not play or be displayed with a black screen instead of an image; compatibility check is the first step before starting an interface modification.
Preparation of video content for installation
Before you start settings in the menu of the smartphone, you need to prepare the source material. Not every video is suitable for use as a call background. The optimal solution is to search for short videos lasting from 5 to 15 seconds that are vertically orientationd or can be easily cropped.
You can use specialized sites or apps to find content, and many users prefer to take snippets from their favorite movies, music videos or anime, and the main requirement is that the key action or face be in the center of the frame, since the edges can be cut by the call interface.
- 🎬 Look for video in vertical format (9:16) to fully fill the screen without black bars.
- ✂️ Use video editors to trim the duration of the video to 10-15 seconds to speed up the loading.
- 💾 Save files to a folder with a clear name, for example «Ringtone_Video», so you don't get confused in the gallery.
If you download videos from social media, make sure they don't have watermarks in the center of the screen that will distract from the information about the caller.A quality source is the key to a beautiful result on the screen of your Redmi 9A.
Use of the built-in video wallpaper application
The most reliable and correct way to set the call background on the Xiaomi Redmi 9A is to use a standard tool. In MIUI firmware, this application is often called Video Wallpaper or integrated into a gallery. It automatically optimizes the video for call mode.
To get started, open your smartphone settings and search for the word "video." The system should suggest "Video wallpaper." If there is no such item, find the application in the list of all programs. Inside you will see a catalog of available videos for download, but we are interested in installing your file.
☑️ Pre-installing check
Press the add button or the plus icon in the application interface. The system will suggest selecting a file from the gallery. Once you select the video, you will be able to select the portion of the frame that will be displayed and adjust the volume (usually the sound of the video when you call is turned off so as not to interrupt the ringtone).
Once you have set up the settings, the system will warn you that the video will be used as wallpaper for the lock screen and incoming calls. Confirm the action. Now, when you call in, you will see the selected movement instead of the static picture.
Alternative method through the MIUI Gallery
There is a second, faster way that doesn’t work on all firmware versions, but is often available on Redmi 9A. It involves installing videos directly through the standard Gallery app, which is convenient because it doesn’t require you to go to deep settings menus.
Open the video you want to install through the Gallery app. In the bottom menu or in the "More" (three dots) option, find the "Install as video wallpaper" option. If there is no such item, then your version of the shell requires the use of a separate application described in the previous section.
| Parameter | Through the video wallpaper app. | Through the Gallery. | Third-party launchers |
|---|---|---|---|
| Stability of work | Tall. | Medium | Low. |
| Battery consumption | Optimized. | Standard. | High-pitched |
| Image quality | Automatic. | Original | Depends on the app. |
| Difficulty setting up | Medium | Low. | Tall. |
When choosing a method through a gallery, the system can offer clipping. Be sure to make sure that important elements (answer button, contact name) are not overlapped by bright or dark sections of the video. Visual control is critical for usability.
Set up third-party applications for calls
In some cases, MIUI's built-in tools may not work properly or be comfortable with their functionality, and Google Play apps like Video Caller ID or Color Phone come to the rescue, providing advanced customization options.
Installing these programs requires a wide range of permissions, and the application needs access to contacts, microphones, storage, and most importantly, the right to display on top of other windows, and without the last permission, the video won't start when the call is in.
Once the profile is set up and set up, the app intercepts the incoming call and displays its interface with the video, creating a “double call” effect: the standard shell can flash first, and then the video background will start. Users often note a small delay of 1-2 seconds.
⚠️ Attention: Third-party caller apps may conflict with Xiaomi's system spam blocker.If you're actively using fraud protection, check the feature after installing a new program.
The advantage of these solutions is that you can link different videos to different contacts, for example, for mom, one video, for work — another. Redmi 9A systems do not usually provide such flexibility, it establishes a single background for everyone.
Optimizing Productivity and Solving Problems
Using video content as a background puts an extra strain on the smartphone’s processor and graphics accelerator. The Redmi 9A is powered by a MediaTek Helio G25 processor, which is a budget solution. When you install too heavy video, the interface can start to slow down.
If you notice that after setting the background, the phone has become slower to respond to touch during a call, try lowering the bitrate of the video. There is a perception that static images in a video (when there is little movement) consume less resources than dynamic scenes with many details.
- 🔋 Turn off the video wallpaper function if the battery level is critically low (less than 15%).
- 📉 Do not use the video with the resolution above 720p, if the interface lags are noticed.
- 🧹 Regularly clean the cache of the video wallpaper app in the application settings if it starts to work unstablely.
It's also important to consider the heating of the case, because if you have long conversations with the video background on, the phone can get hotter than usual, and in such cases, it's advisable to go back to static images or dark themes of design.
Frequent Questions and Answers (FAQ)
Can I install a separate video for each contact?
Why is the video on the call played without sound?
Does the video background affect the battery discharge rate?
What if after installing the video, the calls stopped being displayed?
To sum up, personalizing the call screen on Xiaomi Redmi 9A is an easy way to make smartphone use more enjoyable, and the key is to balance the beauty and performance of the device, and a properly selected video will not only grace the interface, but also will not cause battery discharge at the wrong time.
Experiment with content, check features and enjoy the unique look of your gadget. Technology allows you to make budget devices visually attractive, and it is a sin not to take advantage of these features.