Modern smartphones, especially models with AMOLED-There are many ways to personalize your contacts, but the basic function of displaying contacts is often puzzling. When you get a call, instead of the expected large portrait of the person you are talking to, you can only see a small round image or a standard gray icon. This is due to the interface features. MIUI HyperOS, which by default use the standard Google caller, has its own restrictions on displaying media content.
Many users mistakenly believe that the problem lies in poor quality photos or incorrect framing when saved in the gallery. In fact, the system simply does not know how to automatically stretch standard thumbnails of contacts on the entire display without using third-party applications or special settings of the theme of the design. To solve this problem, you need to understand the difference between the system avatar of the contact and the visual design of the incoming call.
In this article, we will discuss all the available methods to make the incoming call screen as informative and beautiful as possible. We will look at the standard system tools, thematic capabilities and third-party applications that completely replace the standard call interface. You will learn how to properly prepare images and adjust resolutions so that the photo occupies 100% of the usable screen area of your Xiaomi.
Features of the call interface in MIUI and HyperOS
Xiaomi’s inbound shell call interface has come a long way. Early MIUIs had the ability to install custom themes that dramatically changed the lock and call screen. However, with the release of newer versions of Android and the tightening of Google’s security policies, many system components, including the caller, have become less susceptible to third-party changes.
The main problem is how the operating system handles the contact metadata. When you save a number to a phone book, you attach an image that the system compresses and trims to a square or a circle to save resources and keep the contact list uniform, and when you call it, the algorithm takes that thumbnail and instead of stretching it, it enters it into the designated container, leaving the rest of the screen occupied by the response buttons or a blurred background.
⚠️ Note: The standard Android interface does not support native full-screen photos for every contact without using one or third-party call launchers. Don’t try to find the hidden setting in the developer menu, it doesn’t exist there.
Xiaomi’s flagship models often have a high resolution and aspect ratio different from the standard 16:9. If the source photo is in a different format, the system will either crop its edges or add black stripes, which spoils the impression. Understanding these limitations is the first step to successful customization.
Preparation of high-quality images for contact
Before you start setting up the software, you need to properly prepare the source file. The display quality depends on the resolution and format of the photo. The system can ignore too heavy files or, conversely, compress small pictures very hard, turning them into porridge. The optimal solution is to use images with a resolution equal to or higher than the resolution of the screen of your smartphone, but with an optimized file size.
It's important to consider the aspect ratio. Modern smartphones are elongated (19:9, 20:9, and even 21:9), whereas most photos are taken in 4:3 or 16:9. To make the caller's photo occupy the entire screen without distortion, it needs to be pre-fractured. The best way to use a vertical portrait is to have the person's face occupying the center part, and the edges can be safely trimmed.
- 📸 Use high-resolution photos (minimum 1080 pixels on the short side) to avoid pixelation.
- ✂️ Cut the image in advance in proportion to your smartphone screen (usually 9:19 or 9:20 for vertical orientation).
- 💾 Save the photo in format JPG or PNG, format-free HEIC or RAW, which may not be maintained by contact.
You can use the built-in editor in the Xiaomi gallery or third-party apps to edit, and the key is to save the final file in an accessible location, such as in the Downloads or Images folder, so that the system can easily read it when it is linked to the contact. Remember that dark interface themes may require more contrast photos for good readability.
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Save the reference photo to the maximum quality in the cloud. Even if the system compresses it when installed, you will still have the original photo to re-install or use on other devices.
Basic method: installation of photos through a standard phone book
The easiest and most reliable way to do this, which works on all devices without exception, is to manually edit the contact card, which will not have a full-screen effect (like video calls), but will maximize the area you see within the capabilities of a standard caller. First, open the Contacts app or Phone app and go to the list of all the records.
Find the right person and click on their name to open the details. At the top of the card you will see the current photo or icon with the first letter of the name. Click on the camera icon or edit button (usually a pencil or three dots in the corner). In the menu that opens, select the option "Add a photo" or "Change a photo." The system will suggest to choose the source: take a picture or select from the gallery.
Once you select the image, you'll see the framing tool, and here's the important thing: the cropping frame is often framed in a circle or a square, you'll need to zoom and position the person's face in the center and the important details won't be cut off, and once the changes are confirmed, the photo will be stored in the phone's memory and synced with your Google account if sync is enabled.
☑️ Checking the installation of photos
It is worth noting that after installing the photo, you may need to reboot the device or clear the cache of the Contacts app to make the changes effective on the next incoming call. If the photo is installed, but when the call is displayed small, then the current theme or shell version imposes restrictions.
Use of design themes for full-screen display
The most effective way to get a caller’s photo to occupy the entire screen is by using special themes in the Themes app. Theme developers often create their own skins for the call screen that ignore Google’s standard limitations and stretch the contact avatar over the entire display, blurring the background or imposing beautiful effects.
To do this, open the Themes app on your Xiaomi. Search for queries like “Full screen caller,” “Big photo caller,” or simply “Caller.” The themes often indicate whether they support full-screen contact photos. Once you download and apply the theme, the system will completely change the visual style of the incoming call. But here’s the important point: not all the themes are compatible with your Android version or region.
| Type of topic | Compatibility | The photo effect | Stability | Recommendation |
|---|---|---|---|---|
| Official MIUI themes | Tall. | Partial (depending on the author) | Stable. | Recommended |
| Third-party topics (Mod) | Medium | Full-screen | Possible bugs | For the experienced |
| Classic themes | All devices. | Standard (circle/square) | Stable. | Not suitable. |
| Video-background themes | Only new models. | Dynamic. | High battery consumption | For the amateur. |
When applying a new theme, the system can warn you that some interface elements may not display correctly. This is normal, since the theme changes system resources. If the photo still does not stretch after installing the theme, try to find the call style or Caller ID style switch in the theme settings (if any).
What to do if the topic is not applied?
Third-party applications to replace the call screen
If the built-in tools and themes don’t work, specialized apps from the Google Play Store come to the rescue, replacing the standard incoming call screen completely, offering functionality that Xiaomi or Google haven’t yet implemented, allowing you to display high-resolution photos, add video backgrounds, and even animations.
One popular solution is the Truecaller app or specialized Dialer apps. However, be careful: replacing the system caller can lead to conflicts, especially on newer versions of Android, where call permissions are strictly regulated. Once you install the app, you will need to give it permissions to access contacts, phone and display over other windows.
- 📞 Truecaller: Apart from identifying the number, offers its own call themes, but can be overloaded with ads in the free version.
- 🎨 Contacts+: Combine for managing contacts with the ability to install large photos and integration with social networks.
- 📞 Hiya: Truecaller analogue with a lighter interface and the ability to customize the call screen.
The main disadvantage of using third-party callers is the possible delay in displaying the screen when an incoming call is made. Since it is a third-party application, it must intercept the call from the system and start its interface, which takes fractions of a second. On fast Snapdragon processors, this is imperceptible, but on budget models of Redmi or Poco, you can feel lag.
⚠️ Warning: When installing third-party calling apps, be sure to check permissions. SMS Unknown applications, unless it is necessary for their functionality.
Setting up access rights and resolving conflicts
Often the problem with displaying a photo is not the absence of a picture, but the prohibition of access to it. Android has a strict permission system, and if the phone or contact app is not allowed to read the device memory or a specific folder, the photo will not load, this is especially true for Android 11, 12, 13 and later, which are used in HyperOS.
Check your app settings. Go to Settings → Apps → All apps. Find Contacts, Phone, and if you use Themes. Go to Permissions. Make sure they have permission to access Contacts, Memory (or Photos and Videos) and Phone. If you want to disallow or Ask, change to Allow.
Also, you should pay attention to synchronization. If your contacts are stored in Google and you only changed the photo on your phone, the next time you sync your phone photo can be replaced with something stored in the Google cloud (where it may be of poor quality), to avoid this, edit your contacts directly through the Google Contacts web interface on your computer, uploading high-quality photos there, and wait for sync.
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90% of missing photos are solved by checking memory permissions and forced synchronization of your Google account.