Owners of modern smartphones Xiaomi, Redmi and Poco often encounter a visual artifact on the screen that looks like a black bar at the top of the display, a phenomenon known as the “dynamic speaker area” or “dynamic speaker area,” and it simulates a cutout for the front camera, even if your device is made using Full Screen technology without any holes, a feature that was introduced by the developers of the MIUI 12 shell to unify the visual style of the interface, but it annoys many users because it reduces the useful area of the display of content.
Fortunately, in most cases, this option can be easily deactivated through the standard settings menu, returning the screen to its original appearance. However, the procedure may vary slightly depending on the specific version of the firmware and the regional affiliation of your gadget. In some situations, the system may hide this switch, requiring a deeper dive into the engineering menu or the use of special commands. Our task is to review all available methods so that you can choose the most suitable for your situation.
It's important to understand that turning off this area doesn't affect the actual speaker or proximity sensors, it's just a software crutch designed to visually highlight the status bar against a dark background. If you want to enjoy maximum space for games, watching videos or reading, you need to find the appropriate item on the menu. Below we'll detail the step-by-step algorithm of actions.
What is a Dynamic Area and Why Does It Appear?
The appearance of a black bar at the top of the screen on full-screen devices often puts users at a loss.This feature, known as the Dynamic Speaker Area, was added by Xiaomi in the MIUI 12 shell updates and later.The main idea was to visually separate system notifications and indicators from the main content, creating the illusion of a cutout similar to those used in iPhones or other smartphones with bangs.
But for device owners who have a front camera hidden under the screen or embedded in a thin frame, this "service" is useless. Instead of a clean image, you get a darkened zone that can overlap interface elements in some applications or just cornen your eyes. The black bar is not a matrix defect or a sign of a breakdown, it's a software setting that can be changed.
It's worth noting that this is not always obvious, because it can activate automatically after a major system update or factory reset, and users often notice the change only when they start comparing their screen to images on the Internet or the screens of friends with similar models.
⚠️ Note: If the black bar on your screen has ragged edges, changes color or is accompanied by distortion of the image in other parts of the display, this may indicate a physical breakdown of the matrix, in which case software methods will not help, and you will need a diagnosis in the service center.
The main way to disconnect through screen settings
The easiest and safest way to remove the extra black zone is to use the regular menu of operating system settings. Xiaomi developers have provided the ability to control this setting, although they hid it deep enough. First, you need to unlock the smartphone and go to the main screen.
Next, you'll find the Settings app icon. In the settings list that opens, you'll need to scroll down to a section that's usually called Screen or Display. In some firmware versions, this item may be inside the Settings submenu. The MIUI 12 interface is quite flexible, so the layout of the items can vary.
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If you can't find the right item, use the search bar at the top of the settings menu. Type in "Display Area" or "Dynamic Speaker" and the system will redirect you to the menu.
Inside the settings section of the screen, look for a item called the Dynamic Speaker Area, which should have a switch next to it. If it's active (blue or green), just click on it to turn it off. The screen will blink instantly and the black bar will disappear, freeing up space for your content.
In rare cases, the switch may be inactive (shadowed in gray), which means that the function is blocked by system restrictions or current mode of operation. Try to turn off Do Not Disturb mode or change the theme to the standard one, then check the availability of the option again.
☑️ Checking screen settings
Hidden settings and engineering menu
If the standard path didn’t work, your version of MIUI 12 may have limitations for your region or carrier, and in such cases, the engineering menu, a hidden part of the system designed for developers to test equipment, comes to the rescue through special codes in the Phone app.
Open a standard caller and dial the combination ##6484##. On some models, such as the Redmi Note series, the code may differ, such as ##4636##. Once you enter the last digit or menu symbol, the menu should open automatically. If this does not happen, your operator blocks access to these features, and this method will not work.
In the CIT (Customer Information Test) list that opens, you need to find a section associated with the display, which can be called Display, Screen or Version. Inside, look for the Dynamic Speaker or Notch Style option, and you can force the cutout style to change by choosing "Hide" or "No."
⚠️ Warning: Be extremely careful in the engineering menu. Changing unfamiliar settings can cause the touchscreen to malfunction, color calibrate, or even lose the network signal. Change only those settings that relate to the display of the speaker area.
After making changes, the system may suggest a reboot. Agree to have the new settings take effect. If the black bar is still there after the reboot, try changing the Full Screen Display option on the same menu if it's available.
What do I do if the codes don't work?
Use of the ADB-Teams for Advanced Users
For those who are not afraid of the command line and want to gain full control of the system, there is a method of disabling the speaker area via ADB (Android Debug Bridge), which requires connecting the smartphone to the computer and having a minimum set of tools on the PC. It allows you to make changes to the system configuration files without superuser rights (Root).
First, activate the developer mode on your phone. To do this, go to Settings → About Phone and quickly click on the MIUI version seven times. Then, in the Additional → For developers menu, turn on Debugging over USB. Connect the phone to your PC with a cable and select File Transfer mode.
On the computer where the ADB drivers are installed, open the command line and enter the following command to check the connection:
adb devicesIf the device appears in the list, you can move to changing the global setting responsible for the screen cutout.The command may vary depending on the Android version, but most often the following syntax works:
adb shell settings put global physical_display_mode 0Or an alternative, specific to some Xiaomi shells:
adb shell wm overscan 0,0,0,0Once you have the command, the screen should immediately redraw. If there is no change, try rebooting the device, which is the most reliable method for global firmware versions where the settings interface is stripped.
Comparison of methods of solving the problem
The choice of how to turn off the black bar depends on your technical background and the software version. Below is a table that will help you compare the effectiveness and complexity of different approaches, which will save you time and choose the best way to solve the problem.
| Method | Difficulty | Risk of error | The need for a PC |
|---|---|---|---|
| Standard settings | Low. | Absent. | No. |
| Engineering Menu (CIT) | Medium | Medium. | No. |
| ADB team | Tall. | Low. | Yes. |
| Third-party annexes | Low. | High-pitched | No. |
As you can see from the table, the safest option is to use the built-in settings menu. However, if the manufacturer has blocked this feature, you have to resort to more complex methods. Using third-party apps from the Google Play store can carry security risks, as they require extensive permissions to access the system.
Method ADB-Despite its apparent complexity, the team is often the most effective for older models such as the Redmi Note 8 or Mi. 9T, It's not getting any interface updates, it's actually a way around the graphical limitations of the shell.
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Always start with the simplest method, which is to check the standard settings, and switch to an engineering menu or ADB is only justified if the standard method fails.
Possible problems and solutions
When you turn off the speaker area, users may encounter a number of difficulties, such as when you turn off the function, the status bar can become translucent, and time will be overlaid on the wallpaper, which reduces readability, in which case you should change the wallpaper to darker or set a theme adapted to your screen.
Another common problem is automatically turning on the black bar after rebooting or updating applications. This may indicate a system cache conflict. Try clearing the System UI (System UI) cache through the application management menu. To do this, go to Settings → Applications → All Applications → System UI → Memory → Clear the cache.
It’s also worth mentioning that in some games and video players, a black bar can appear regardless of system settings if the application is not optimized for your screen aspect ratio. In screen settings, there is often a Full-screen mode option where you can force the correct display for specific applications.
⚠️ Warning: Do not attempt to delete system files that render the interface, even if you find their names on the forums.This can lead to a “boot loop” (cyclic reboot) and require reflashing the device.
If none of these methods worked, the problem may be with the firmware version, which means you should consider rolling back an earlier version of MIUI or installing custom firmware, although the latter action will take away the official warranty.