How to take a full screen photo when calling Xiaomi

Xiaomi and Redmi smartphone owners often face a situation where the long-awaited call personalization feature doesn't work as expected. Instead of a stylish image occupying the entire display area, the system shows a small round icon or square with huge black fields on the sides. This is especially annoying on modern devices with large screens and camera cutouts, where the standard interface looks archaic and unaesthetic.

The problem lies not only in the lack of user desire to customize the device, but also in the features of the MIUI shells and the new HyperOS. Android security system restricts applications from accessing the full screen during an incoming call, and framing algorithms often misidentify the center of the composition. However, there are several proven ways to circumvent these restrictions and make the phone display photos of contacts as intended.

In this article, we will discuss all the nuances, from standard system settings to the use of third-party utilities and hidden engineering menus. You will learn how to properly prepare the image so that it does not crop, and which system components are responsible for displaying Caller ID. We will also touch on the topic of access rights, without which the full operation of the function is impossible.

Image Preparation: Format and Proportions

Before you get to the settings, you need to properly prepare the original file. Android standard requirement is a square image, but for full-screen mode on Xiaomi this is not enough. The screens of modern smartphones have elongated proportions, for example 20:9 or 19.5:9. If you download a regular square, the system will either stretch it, distorting the face, or trim the edges, or add unaesthetic blurred fields.

The best solution is to create a vertical image with a resolution that matches your device's screen. For most models, it's 1080x2340 pixels or higher. It's important to consider that part of the space at the top and bottom of the screen will be occupied by the call interface: reset buttons, response buttons and subscriber name. So the center of the photo should be free of important details.

• 📐 Use graphics editors to create a vertical canvas with the proportions of your screen.
• 👤 Place the face or subject strictly in the center, leaving the stock at the top and bottom.
• 🖼️ Save files in format JPG or PNG High quality to avoid compression artifacts.

There is a common misconception that the system itself "smartly" frames photos. In practice, MIUI algorithms often shift focus, especially if there are several people in the photo or a complex background. It is critical to manually crop the photo to a vertical format before uploading to contacts, since the built-in cropper in the phone book has limited functionality and does not allow you to accurately position the image for full-screen mode.

Configure through the standard Contacts app

The most basic way to install an avatar is to use the built-in Contacts app. This method works on all versions of the firmware, but has display quality limitations. Open the app, find the number you want on the list or search. Click on the contact name to go to the card, and select the edit button, usually a pencil icon or a menu change.

In edit mode, click on the avatar area. The system will tell you to choose the source: make a photo with a camera or choose from a gallery. After selecting an image, the framing interface will open. It is important not to rely on automatic determination. Rotate and zoom the image so that the face occupies the center of the circle, but note that when calling this area can be visually reduced.

⚠️ Note: When you install a photo through a standard menu, the system can forcibly crop the image to a circle, in which case the full-screen effect will not be achieved, and you will see only a thumbnail.

For some models, especially in the HyperOS shell, an advanced editor is available. If you see the option "Fullscreen contact" or similar after selecting a photo, be sure to activate it. If this option is not available, then your region or firmware version does not support the native Fullscreen Caller ID function without additional manipulation, in which case the image will only appear in the standard call window.

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If the standard app doesn’t work, try first installing a photo through Google Contacts in the web version, and then synchronizing your smartphone. MIUI.

Use of the Caller ID Screen Theme

The most effective way to get a really beautiful full-screen photo is to use the Caller ID Screen system function, which is a separate shell component that replaces the standard incoming call window with a custom interface. You can find it through the Themes app. Open a theme store, go to a user profile (human icon) and find the Caller ID section or search for "Fullscreen call".

The theme library has a variety of free and paid options, which are divided into static (just photos) and dynamic (with animations). Once you select a style, click Download and then Apply. The system will request confirmation of replacing the standard call screen. After application, any incoming image from the contacts will be displayed against the background of the entire screen, overlapping the system elements.

• 🎨 Choose themes marked Dynamic for live animation when calling.
• ⚙️ Check the theme compatibility with your Android version in the description.
• 🔄 Update themes periodically, as old ones may conflict with new security patches.

It's important to understand that Caller ID Screen is a separate interface layer, and it requires additional permissions to work. When you first start or after you upgrade, your smartphone can request permissions to display over other windows and access contacts again, and without those permissions, the feature won't work, and you'll see a standard black screen or default theme.

Third-party applications for call management

If Xiaomi’s built-in tools don’t meet your needs, Google Play apps come to the rescue, with Truecaller and call launchers like Contacts+ or Drupe leading the way, replacing the standard caller entirely and offering flexible incoming call display settings, including support for high-resolution vertical photos.

Once you install this app, you need to make it the default app for calls. Android controls this process very closely. When you first start, you will be transferred to settings where you need to select a new dial, you will also need to issue extended permissions: access to the call list, contacts, microphone and, critically, permission to "Master on top of other applications."

Third-party solutions have their own risks. They can consume more battery power, as they constantly hang in the background and monitor incoming calls. In addition, some features, such as recording a conversation or blocking spam, can conflict with the system mechanisms of MIUI. Before installing, carefully study the reviews to make sure that the application works on your version of Android.

System Permits and Access Rights

Often the reason why a photo doesn't show up full-screen or isn't visible at all is because of incoming resolutions. HyperOS shell and later MIUI versions have aggressive energy saving and security policies. If a Topic, Contacts or Phone app doesn't have the right to read the storage, it just won't be able to load the high-resolution image.

You can check and configure permissions in the Settings menu → Apps → All apps. Find the app you use to make calls (such as Services and Feedback or Themes if Caller ID is used). Go to App Permissions. Make sure that "Contacts", "Phone", "Memory" (or "Photos and Videos") and "Master on top of other apps" are activated.

⚠️ Note: On Android 13 and above, memory access is divided into categories. Make sure the app is allowed to access photos and videos, not just media files in general.

Another important aspect is background work. The system can "kill" the process responsible for displaying Caller ID to save charge. In the application settings, find AutoStart and turn it on. Also in the Battery section, select "No Limits" mode, which ensures that when an incoming call is made, the system will not block the launch of a heavy theme with animation.

Problem Solving and Frequent Errors

Even if you set it up properly, you can have some failures, like you have a photo, but it doesn't change after you edit it, and it's a classic sign of a crowded system cache, so you need to clear the Contacts cache and Contact Warehouse. → Annexes → All applications → Contacts → Memory. → Don't worry, your numbers won't be deleted, they're stored in the cloud or on the computer. SIM-map.

Another common problem is de-synchronization with a Google account. If you edit a contact on a computer, the changes may not immediately come to your phone. Check the sync status in the Accounts and Sync menu. Sometimes it helps to manually turn on and off contact sync. It is also worth checking if the contact is limited to "Phone Only", in which case the photo from the Google server will not be downloaded.

If you are using doubles SIM-maps, make sure that the photo is tied to the contact from which the call comes, or that the settings of the number determiner is not limited to showing only for a certain number. SIM. In some cases, it helps to remove the contact and create it again from scratch, writing the number in a format. +7... with country code, as the system can count numbers with different prefixes by different subscribers.

FAQ: Frequently Asked Questions

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The key to success is a holistic approach: the right vertical photo + active Caller ID Screen theme + authorized autorun. Only a combination of these three factors guarantees a stable result.