Modern Xiaomi smartphones are equipped with advanced displays with minimal bezels, but standard interface settings do not always use the entire useful area of the matrix. Users often notice that in some applications or games the image does not stretch to the full screen, leaving black bars at the edges. This can significantly reduce the level of immersion when viewing content or passing game levels.
Known as “Limitless Screen” or “Full Screen Mode,” the feature allows content to be forcibly stretched across the entire display, ignoring the standard proportions of app developers. Activating this option requires interventions in system settings that are sometimes hidden from the average user. In this article, we’ll detail how to find and configure these settings on your device.
It is worth noting that improper zoom configuration can lead to distortion of the interface or cropping of important controls. So before making changes, it is important to understand exactly how the image rendering system in the MIUI or HyperOS shell works. We will consider safe activation methods and ways to return to factory values if necessary.
What is the limitless screen mode in MIUI?
Limitless screen mode is a software feature that causes the operating system to ignore standard ratios. ratio_ Instead of running a program in a black box, Android stretches the image to fill all the available pixel space, which is especially true for devices with elongated screens. 20:9 or 21:9.
Technically, this process is called scaling, or zooming. The system takes the original developer resolution (e.g., 16:9) and forcibly stretches it to the physical boundaries of the matrix. Most of the time, this works fine, but some older games or specific utilities may have artifacts.
It is important to distinguish between software stretching and hardware display capabilities. If the screen physically has a camera cutout or rounded edges, the software must take these areas into account. The feature of the limitless screen on Xiaomi is often integrated with the Full Screen Mode settings, where you can set the behavior for each application individually.
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Before changing the display settings, take a screenshot of the current settings or take a screen photo to know which values to return to in the event of an interface failure.
Using this feature allows you to use the resources of expensive AMOLED or LCD panels in the most efficient way. Without the right setup, you can lose up to 15-20% of the useful area of the image, which is critical for navigating in maps or working with documents.
Preparing the device for changing the display parameters
Before you go to activate hidden or advanced screen features, make sure the system is ready for changes. First of all, check the version of the installed firmware. Older versions of MIUI may not have the necessary drivers to work correctly with the new display modes.
It is also recommended to clear the cache of the system services responsible for the interface, which will help avoid conflicts, when the old zoom settings may overlap the new parameters, go to the storage settings and find the System Interface application.
☑️ Check before setting up the screen
Pay attention to the installed themes. Third-party themes downloaded from Themes store may have their own zoom rules that will conflict with the system settings of the limitless screen. For testing, it is better to temporarily switch to a standard theme Classic or Default.
The important step is calibrating the sensors. Sometimes the proximity sensor or the accelerometer may not correctly transmit the position of the device, which affects the orientation of the screen. Make sure that the autorotation is stable in all applications.
Why do we need sensor calibration?
Activation through developer settings
The most reliable way to enable advanced screen features is to use the developer menu, which contains hidden options to fine-tune the interface rendering, and to enter this menu, you need to click on the build number several times in the About Phone section.
Once you activate the developer menu, look for the section related to display or Drawing. Here you are interested in an option that could be called Scaling to Full Screen or Force Full Screen. Enabling this option forces the system to apply full screen mode to all applications by default.
However, beware: global application of this setting can break the layout in banking applications or instant messengers, where the exact proportions of buttons are important.
Some versions of HyperOS have a separate option called “Enlarged Corners” or similar, which allows you to compensate for the rounding of the display, expanding the workspace, which is especially useful for devices with heavily curved edges of the screen.
Set up full screen mode for individual applications
Xiaomi’s system allows you to flexibly manage the behavior of the screen for each installed application. This is the most secure method, since it does not affect the system global settings. You can find this section by Settings → Screen → Full-screen mode.
In the list that opens, you'll see all the apps that are installed. Opposite those that don't support the current default proportions, there's a switch. By activating it, you're giving the system a command to stretch the content for that particular software.
It's worth noting that not all apps respond to this setup the same way: Some games may just increase the field of view (FOV), while others will just stretch the picture to make the characters wider. It depends on the engine on which the app is written.
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If after the full screen mode is turned on, part of the interface is lost in the game (buttons have gone over the edge), try to change the aspect ratio in the settings of the game itself, if such an option is provided there.
For multimedia content, such as video in a browser or streaming services, it is often enough to simply rotate the device. However, if the video has a non-standard resolution, the system may not understand that you need to fill the entire screen, in such cases, manual launch through a gallery or a video player with support for zooming helps.
Hidden codes and engineering menu for display
For advanced users, there is an opportunity to access the engineering menu through special USSD-It's a powerful tool that allows you to test the matrix and change the deep color and resolution parameters. Enter the codes carefully, because changing the wrong parameters can lead to unstable work.
One of the common codes to log into the engineering menu is ##6484##. In the CIT menu that opens, you can select Display or Screen, where you run broken pixel tests and check the response of the touchscreen.
In some firmware modifications, you can change the DPI (dots per inch) through the engineering menu, reducing this value visually increases the size of the interface elements, creating the illusion of a larger workspace, although the physical resolution remains the same.
| Parameter | Standard value | Recommended for Infinity | Risk |
|---|---|---|---|
| DPI (density) | 360-400 | 320-340 | Medium (small text) |
| Frequency of update | 60 Hz | 90/120 Hz | Low (battery) |
| Scaling | Automobile | Stretching | High (distortion) |
| Dark subject matter | Off | Scheduled. | No. |
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Changing the DPI through the ADB or engineering menu is the most effective way to increase the visible area, but requires caution and accurate calculations.
Solving scaling and distortion problems
Once the limitless screen mode is activated, users often encounter artifacts: the image can float, the fonts become unreadable, and the control buttons go beyond the visible zone, classic signs of an incorrect aspect ratio.
If you notice that the application is cropped text or buttons, try to disable full-screen mode for this application. The system will remember the choice and next time it will run the program in compatible mode with black bars, but with the correct display of elements.
Problems can also arise from conflict with paper wallpaper or live wallpaper, which consumes a lot of GPU resources. When using full-screen games, it is recommended to use static, dark wallpaper to reduce the load on the system.
Why do games have “fish” after the update?
If the system interface is no longer displayed correctly (the status bar or navigation bar is missing), resetting the screen settings will help, which can be done through Safe Mode or resetting special features.
The impact of refresh rate on screen perception
The concept of a limitless screen is not only about area, but also about smoothness. The high refresh rate (90 Hz, 120 Hz) gives the feeling that the content transcends the physical scope of the device. → Screen. → Frequency of update.
The default mode allows the system to decide when to increase the hertz, saving battery power, but for maximum effect of limitlessness in games and when scrolling through the tape, it is better to set the value of 120 Hz forcibly, if the smartphone model allows it.
Keep in mind that working at a high refresh rate increases your power consumption. If you want to keep the feeling of smooth, “infinite” scrolling, but save charge, use adaptive mode, but turn off battery optimization for frequently used applications.
☑️ Optimization for full immersion
The smoothness of animations in MIUI has a direct impact on how you see the edges of the screen, and the faster and smoother the transitions between windows, the less visible the physical frame of the display, a psychological effect that is widely used by interface designers.