Setting up full-screen photos for an incoming call on Samsung

Modern smartphones series Samsung Galaxy offer a wide range of personalization options, however, standard interface settings One UI do not always allow you to implement functions the way the user wants. One of the most popular, but often hidden options is the ability to display the caller's photo on the entire display screen, and not in a small round window. By default, the operating system on Samsung devices crops the contact's image to a round avatar, which often leads to the loss of important details of the photo or its unclear display. This is especially noticeable on models with large screen diagonals, where the circle occupies only a small part of the usable area. To change this visual template, you need to perform a number of specific actions, which depend on the firmware version and model of your device.

Default operating system Android On Samsung devices, it crops the contact's image to a round avatar, which often results in the loss of important details in the photo or its display being unclear. This is especially noticeable on models with large screen diagonals, where the circle occupies only a small part of the usable area. To change this visual pattern, you need to perform a number of specific steps, which depend on the firmware version and model of your device.

In this article we will look in detail at how to bypass system restrictions and set a high-quality photo in full screen for an incoming call. We will look at both built-in system tools and third-party utilities that may be required for older versions One UI. We will also pay attention to the correct cropping of images so that the subscriber's face is not distorted when scaling.

Features of the One UI interface and display of contacts

Interface One UI, developed by the company Samsung, is focused on the ergonomics of use with one hand. It is for this reason that many controls and visual data, including caller avatars, are pushed to the top or center of the screen and have a limited display area. The system automatically applies a circle mask to any image loaded into the contact field, ignoring its original proportions.

Starting with version One UI 3.0 and higher, image processing algorithms have become more aggressive in terms of data compression to save resources. This means that even if you upload a high-resolution photo 4000×3000, the system will create a thumbnail, which will be displayed when you call. Unfortunately, the standard Google or Samsung Phone app does not have a Full Screen switch for contact photos.

⚠️ Warning: On some budget models (entry-level Galaxy A series) and enterprise firmware, personalization features may be limited to system limits, making it impossible to change the behavior of the call screen without gaining superuser rights.

However, there is a workaround related to how the system reads the image metadata. If you prepare the file in a certain way before uploading it to the phone book, you can fool the crop algorithm. This often requires the use of third-party graphic editors or specialized contact management applications that have access to system APIs at a deeper level.

Image preparation: cropping and format

The key step in the setup process is the correct preparation of the graphic file. The standard screen aspect ratio of modern Samsung smartphones is 19.5:9 or 20:9, while most photographs are taken in 4:3 or 16:9. If you upload a regular photo, the system will either crop it in the center, leaving only the face, or compress it, distorting the proportions.

To achieve the best result, you must manually crop the image to a vertical format that is as close as possible to the resolution of your screen. It is recommended to use a resolution of at least 1080×2340 pixels to ensure clarity on high pixel density displays. PPIs. It is also important to take into account the “blind spots” of the screen, such as a cutout for a camera or speaker, so that the subscriber’s face is not blocked by technical elements.

The file format also matters. Although the system supports JPEG i PNG, the PNG format is preferable for images with a transparent background or complex graphics, since it does not introduce compression artifacts. However, it is worth remembering that PNG files take up more space, and with thousands of contacts, this can slightly increase the size of the phone book database.

There is a nuance with color rendering. Screens Dynamic AMOLEDused in Samsung flagships have rich colors. An image that looks fine on a computer may appear too bright or too contrasty on a smartphone screen. It is recommended to slightly reduce the saturation and brightness of the photo at the pre-processing stage, so that when there is an incoming call, it does not “hurt” the eyes in the dark.

Methods of installing a photo through the standard Contacts application

The simplest method, which works on most devices with the current version of the software, is to use the standard application Contact. Despite the absence of an explicit “full screen” setting, the correct algorithm of actions allows the system to resize the image to the maximum available size. To do this, you need to open the application and find the desired subscriber in the list.

Click on the edit button (usually a pencil icon), then tap on the current profile image or camera icon. In the menu that opens, select the "Select from gallery" option. Here it is critical not to just select a photo, but to use the cropping tool, which will appear immediately after selecting the file. Stretch the selection frame over the entire available area, ignoring the system prompts about the circular zone.

• 📸 Open the gallery and select a pre-prepared high-quality vertical photo.
• ✂️ In editing mode, expand the selection area as much as possible, capturing all the details of the image.
• 💾 Save the changes and check the display in the contact card.
• 📞 Make a test call from another number to check the result.

After saving, the system may take a few seconds to process and generate thumbnails of different sizes. If after this, when you make a call, the photo is still displayed in a circle, try clearing the cache of the Contacts and Phone applications. To do this, go to Settings → Applications, find the desired application, select Memory and press Clear cache. The data will not be deleted.

Using third-party applications to manage calls

If standard methods do not give the desired result, specialized utilities from the store come to the rescue. Applications like Google Play. Applications like Truecaller, Contact Photo & Caller ID or Full Screen Caller ID completely replace the standard incoming call screen with their own interface. This allows you to display any image without restrictions, overlaying it on the entire screen with a blurred background or in its original form.

Such applications work on the principle of call interception. When a call comes in, the system transfers control to third-party software, which reads the number, finds the corresponding photo in its database or in your contacts and displays it. The advantage is the flexibility of the settings: you can adjust the transparency, position of the photo, add quick reply or reset buttons directly to the image.

Application	Access type	Background option	RAM consumption
Truecaller	Requires access to contacts	Yes, blur	Medium
Full Screen Caller ID	Requires overlay	Yes, full photo	Low
Contact Photo & Caller ID	Requires access to storage	Partially	Low
Hiya	Integration with the system	No, only an avatar	Average

However, the use of third-party Call launchers have their drawbacks. Firstly, this is an increased consumption of RAM RAM, which can be critical for devices with 4 GB of memory or less. Secondly, such applications require permanent permissions to run in the background and display on top of other windows, which may raise issues in terms of data privacy.

⚠️ Attention: When installing applications to replace the call screen, be sure to check the permissions. If an application requests access to a microphone or SMS without a clear need for its operation, it is better to refrain from using such software.

Setting up synchronization with a Google account

Often the problem with displaying photos is not related to the phone settings, but to the synchronization process. If your contacts are stored in your account Google, the image can be loaded from the search engine servers, where it has already been pre-processed and compressed. In this case, local photo replacement may not work, since the next time you sync, the system will return the old, “optimized” version.

To avoid this, it is recommended to disable image synchronization for a specific contact or for the entire phone book if you want to use local high-quality files. Go to Settings → Accounts and Backup → Account Management → Google. In the list of synchronization items, find the "Contacts" item and make sure that the import/export settings do not overwrite your local changes.

Why is the photo reset after a reboot?

This is due to a conflict between the phone's local database and the cloud storage. When loading the system, priority is often given to the cloud version, which contains a low-resolution image. The solution is to save the contact locally on the device, and not in your Google account.

It is also worth considering that Android has several levels of contact storage: SIM card, device memory and cloud accounts. Photos linked to contacts on the SIM card will not be displayed at all, since the SIM card's memory capacity does not allow for storing graphic data. Make sure that the edited contact is saved in the phone memory or in an account whose synchronization is configured correctly.

Solving display and quality problems

Even after making all the settings, users may experience that the photo looks blurry or jerks when it appears. This is often related to the operation of interface animations One UI. When there is an incoming call, the system tries to smoothly enlarge the avatar, and if the original resolution is not high enough, interpolation leads to a loss of clarity. The solution is to use sources with a resolution reserve, for example, 2000×2000 pixels and higher.

Another common problem is a dark theme. In Dark Mode mode, some firmware versions invert the brightness of avatars or apply a translucent black filter, making the photo unreadable. Check the theme settings in the Settings → Display → Dark themesection. If the problem occurs only in dark mode, try disabling it or reporting an error to Samsung support through the app Samsung Members.

• 📉 Blurring is often caused by low DPI of the original image.
• 🌙 The dark filter is a feature of how it works energy-saving screen modes.
• 🔄 Resetting photos may be a result of third-party memory cleaners.

If all else fails, you can resort to a radical method - resetting the settings of the "Phone" application to factory settings. This will delete call history and dialing settings, but will restore the interface to standard behavior, which sometimes eliminates software glitches that prevent graphics from displaying correctly. Don't forget to make a backup copy of important numbers before this procedure.

Frequently asked questions (FAQ)

Is it possible to set video instead of photos when calling Samsung?

This is impossible using standard system tools. To set up a videophone when making a call, you will need to use third-party applications from Google Play, such as "Video Caller ID", which replace the call screen with their player. However, this significantly increases battery consumption.

Why is the contact photo visible only to me, while the other person sees the standard icon?

Contact images are not automatically transmitted during a call via the standard voice protocol. The interlocutor will see your photo only if he saves your number in his phone book and adds a photo manually, or if you use instant messengers (WhatsApp, Telegram, Viber), where avatars are synchronized via the Internet.

Does setting a photo to full screen affect the speed of the phone?

No, a static image does not have a noticeable effect on processor performance or speed system response. The load occurs only at the moment of processing and scaling the picture when a call arrives, which takes a fraction of a second and is invisible to the user.

How can I get everything back if I don’t like the result?

To return to the standard view, just go to edit the contact, click on the photo and select the “Delete” or “Reset” option. The system will automatically return the standard gray icon with the first letter of the subscriber's name. If third-party applications were used, they must be removed through the app settings.