Many users of modern smartphones are faced with an incomprehensible situation when a so-called “second screen” appears on the device. This phenomenon can manifest itself in different ways: from obsessive image duplication to the appearance of an additional desktop that cannot be removed using standard methods. Most often, the problem lies in accidentally activated accessibility functions or features of manufacturers' proprietary shells.
Figureing out how to remove the second screen on Android is necessary to restore the usual comfort of using the gadget. Unnecessary interfaces are not only distracting, but can also significantly drain battery power, putting a strain on the processor. In this article, we will look in detail at all possible reasons for the appearance of extra displays and provide step-by-step algorithms for disabling them for various scenarios.
The nature of the appearance of additional screens in the system
The concept of “second screen” in the ecosystem Android is not a single term. By it, users often mean completely different technical implementations. In some cases, we are talking about a function display duplication, when the image from the phone is broadcast to an external monitor or TV. In others, about software add-ons, such as Second Space from Xiaomi or split-screen mode.
Sometimes a second screen appears due to graphics driver malfunctions or after an unsuccessful firmware update. The system may erroneously activate the virtual display for application debugging. It is also worth considering that some launchers allow you to create an endless number of desktops, which beginners may perceive as extra screens.
It is important to determine exactly what problem you are facing. If the image is simply duplicated, you need to look for broadcast settings. If this is a separate space with other applications, we are talking about multi-user access mode or a protected profile. Incorrect diagnosis will result in you disabling the wrong features.
⚠️ Warning: Before making changes to system settings, it is recommended that you back up your important data. Resetting some interface settings may remove application shortcuts from desktops.
If the second screen appears suddenly after installing a new application, try uninstalling it in Safe Mode. This will help identify the culprit of the interface conflict.
Disabling the image duplication and broadcast function
The most common reason for the appearance of a “second screen” is the activated wireless projection function. Modern smartphones are equipped with protocols Miracast and Chromecastthat allow you to display images to external devices. If the “Broadcast” or “Smart View” button was accidentally pressed in the notification panel, the phone begins to search for available displays.
To remove this effect, you need to lower the notification shade and find the corresponding icon. It may be called differently depending on the model: Screen Sharing, Wireless Projector, or Broadcast. Clicking this button opens a menu of available devices. If the connection is already established, the name of the TV or monitor will be displayed there.
To completely disconnect, follow these steps:
- 📱 Open the quick settings panel by swiping from top to bottom.
- 🔍 Find the icon called “Broadcast”, “Smart View” or “Projection”.
- ❌ Click on the active disconnect button or select “Disable” in the menu that appears.
- ⚙️ If the button is not found, go to
Settings → Connected devices → Connection settings.
In some cases, the function may freeze in the background. Then rebooting the module helps. Go to Wi-Fi settings, select advanced options and disable Wi-Fi Direct if it is active. This will break the connection with any external displays, even if they are not displayed in the list of active ones. Wi-Fi Direct. Go to Wi-Fi settings, select advanced options and disable Wi-Fi Direct if it is active. This will break the connection to any external displays, even if they don't appear in the list of active ones.
Deleting second space and protected profiles
Owners of smartphones Xiaomi, Huawei i Honor often encounter the “Second Space” function. This is a complete isolated environment inside the phone, with its own set of applications, photos and settings. Switching between the main and second space occurs using a fingerprint or a special password, which can mislead the user.
If you accidentally created such a space and want to get rid of it, standard deletion of the desktop will not help. You need to go into deep system settings. The path usually lies through the section Settings → Accessibility → Second space. In some shells, this item is located in the “Passwords and Security” menu.
The process of deleting the second space is irreversible. All data stored within this profile will be irretrievably lost. The system will require confirmation of the action, since this is a serious intervention in the structure of user data. Make sure that you do not store important documents or photos in the second space.
| Device brand | Path to settings | Function name | Risk of data loss |
|---|---|---|---|
| Xiaomi / Redmi | Settings → Special capabilities | Second space | High (complete deletion of profile) |
| Huawei / Honor | Settings → Security | Private space | High (encrypted data) |
| Samsung | Settings → Biometrics | Folder Knox / Secure Folder | Medium (archiving is possible) |
| OnePlus | Settings → Utilities | Parallel space | High |
After finding the desired menu item, select the “Delete second space” option. The system will offer to transfer the data to the main profile or delete it immediately. Select the appropriate option and confirm the action by entering the main screen unlock password.
What to do if you forgot the password for the second space?
If you do not remember the password or fingerprint to enter the second space, the only way out is to completely reset your phone to factory settings. This will delete all data from the device, including the main space, so use this method only as a last resort.
Customizing desktops and launchers
Sometimes by “second screen” users understand an extra page of the desktop, which was formed as a result of the chaotic movement of icons. The standard launcher Android allows you to create many such pages. To remove a blank or unnecessary screen, you need to go to interface editing mode.
Pinch the center of the screen with two fingers or hold your finger on a free space for a long time. A preview of all desktops will open. Here you will see thumbnails of each screen. Find the one you want to delete and drag it up or click on the cross that appears in the corner of the thumbnail.
If you have a third-party launcher installed, for example Nova Launcher or Microsoft Launcherthe logic may be different. In the settings of the launcher itself there is often an item “Desktop grid” or “Number of screens”. Decreasing this value will automatically delete extra pages on the right.
- 🖐 Make a pinch gesture on the main screen to enter editing mode.
- 🗑 Find the extra page and drag it to the trash or press the delete button.
- ⚙️ Check the grid settings in the launcher options, if the standard method did not work.
- 🔄 Restart the launcher through application settings if the interface is frozen.
You should remember that removing the screen with widgets will make these widgets disappear. If there were important clocks, weather or news on the second screen, they will have to be added again to the main page. This is not critical, but it takes time to re-configure.
⚠️ Attention: On some smartphones with shell MIUI or ColorOS removing all widgets from the page does not delete the page itself instantly. You must definitely drag the screen thumbnail to the special trash icon at the top of the editing menu.
☑️ Checking the launcher settings
Split screen mode and floating windows
Another situation that can be mistaken for a second screen is an activated multitasking mode. On large screens of smartphones or tablets, it is convenient to use the Split Screen function. In this mode, the display is divided into two equal or unequal parts, each of which runs its own application. Android It is convenient to use the Split Screen function. In this mode, the display is divided into two equal or unequal parts, each of which runs its own application.
To exit this mode and return the full screen to one application, you need to find the dividing line between the windows. Usually it is a thin strip in the center or on the side. Pull this bar all the way to the edge of the screen (up, down, or to the side, depending on the orientation). One of the applications will close, and the second will take up the entire display.
There are also floating windows that look like small screens on top of the main interface. They are often used in instant messengers or video players. To close such a window, find the cross in its corner or drag the window to the bottom of the screen, where a reset zone will appear.
Sometimes exiting a split screen is difficult due to a system bug. If dragging the separator doesn't work, try minimizing both apps to the recent tasks menu and closing them one by one. After that, launch the desired application in normal mode.
Split screen mode is not a separate display, but a multitasking feature. Disabling it does not require a reboot; you just need to collapse the windows by dragging the separator.
Resetting interface settings and USB debugging
If none of the above methods helped remove the second screen, perhaps the problem lies in a failure of the system interface settings or enabled developer options. The "Secondary display emulation" feature in the developer menu can create virtual screens for testing applications.
To check this, go to Settings → For developers. If this section is hidden, you need to activate it by tapping the build number seven times in the About Phone section. Inside the developer menu, find the item “Force secondary display emulation” and set the value to “No” or “Off”.
It is also worth checking the accessibility settings. Some services, such as TalkBack or eye gaze controls, can create visual frames or pointers that the user mistakes for a second screen. Disable unused functions in the section Settings → Accessibility.
adb shell wm size
adb shell wm density
For advanced users who have access to a computer and installed ADB, you can check the screen resolution via the command line. Entering the commands shown above will show the current resolution and pixel density. If the values do not correspond to the declared characteristics of your phone, you can reset them with the command adb shell wm size reset.
⚠️ Attention: Changing parameters via ADB requires caution. An incorrectly set resolution can make the interface unreadable. If the screen becomes black or incorrect, perform a full reset via Recovery Mode.
As a last resort, if the software failure is profound, resetting the phone to factory settings will help. This will delete all user data, but is guaranteed to return the standard interface configuration without unnecessary screens and bugs.
Before resetting the settings, be sure to synchronize contacts and photos with Google cloud storage or your manufacturer account so as not to lose important information.
Frequently asked questions (FAQ)
Why did the second screen appear by itself after an update?
System updates often reset some settings or enable new features by default. Check Accessibility and Display Settings. It is also possible that the update affected the launcher, changing the number of desktops.
Is it possible to disable the second screen without losing data?
Yes, in most cases. Turning off the broadcast, exiting split screen, or deleting a blank desktop page does not affect personal files. Data loss is only possible when deleting the “Second Space” or resetting the phone to factory settings.
The second screen prevents you from playing games, what should you do?
Most likely, you have the “Game Mode” function enabled with a floating chat window or acceleration. Go to your phone's Game Center settings and turn off overlays. Also check to see if USB debugging is enabled, which may cause dimming or aliasing.
How to remove the second screen on Samsung if there is no shutdown button?
On Samsung, this feature is often called "Smart View". If the button is not in the curtain, go to Settings → Connected devices → Smart View and force stop the service. Also check out the SmartThings app, which can control external displays.
Does the second screen affect the speed of the phone?
Yes, if it is an active broadcast or a working second space. The system wastes CPU and RAM resources on rendering additional images or maintaining an isolated environment. Disabling unnecessary functions will have a positive effect on autonomy.