Owners of Xiaomi equipment often face a situation when a duplicate image from a smartphone suddenly appears on the screen of a TV or monitor - the so-called "second screen". This feature is useful for presentations or viewing content on a large screen, but can interfere if activated accidentally. In this article, we will discuss all possible ways to turn off the second screen on Xiaomi devices, including smartphones with a high-end device. MIUI, Mi TVs TV And the Mi Box.
Complicating the problem is that the screen duplication control interface may differ depending on the device model and firmware version. MIUI 14 The path to settings is different from MIUI 12, and Xiaomi TVs based on Android TV They have their own logic for connecting screens, and we're going to look at universal methods, and we're going to look at specific solutions for different types of devices.
It is important to understand that the โsecond screenโ can appear not only due to the activation of the Screen Mirroring function, but also for other reasons: connecting to Miracast, using DeX mode (on some models), or even malfunctioning Google Cast.
Why Xiaomi is getting a second screen
Before you disable duplication, you need to understand the reason for it. On Xiaomi devices, the second screen can be activated in several ways:
- ๐ฑ Screen Mirroring (Miracast) - wirelessly duplicates the screen of a smartphone on a TV or monitor, works over Wi-Fi Direct and does not require Internet access.
- ๐บ Google Cast โ transferring content (such as YouTube videos) to your TV via Chromecast-enabled apps.
- ๐ฅ๏ธ DeX mode (on some models) โ converting a smartphone into a desktop computer with output to an external screen.
- ๐ Wired connection - through HDMI (on supported models) or USB-C โ HDMI adapter.
- โ๏ธ Software failure is rare, but it happens that the system mistakenly activates duplication without a user command.
On Mi TVs. TV The second screen may appear due to automatic connection to the smartphone, if previously synced through the Xiaomi account was configured. TV Assistant) can initialize the connection in the background.
If you're not sure what technology is used, try turning each one off consistently, starting with the most likely ones. For example, if the duplication appears after connecting to Wi-Fi, it's likely Miracast or Google Cast.
How to turn off the second screen on Xiaomi smartphone (MIUI)
If the second screen appeared on the TV or monitor due to the connection from the smartphone, the first thing you need to do is turn off the duplication on the phone itself. MIUI This is done through a quick settings panel or a menu of settings.
Method 1: Through the notification panel
The fastest method is to use the Quick Settings Panel:
- Swipe your finger down to open the notification panel.
- Find the Screen Mirroring button (can be called Wireless Display, Cast or Screen Duplication).
- Slap it once to turn off the connection.
If the button is not in the main panel, swipe down again to reveal all the quick settings, or click on the pencil icon (โ๏ธ) panel-editing.
Method 2: Through Connection settings
If the Quick Settings Panel does not help, go to the settings menu:
- Open the Settings. โ Connection and Sharing (or Connection & Sharing).
- Choose Screen Duplication (Cast or Screen Mirroring)
- In the list of connected devices, click on active and select Disable.
On some versions MIUI (for example, MIUI 13 and below) the path may be different: Settings โ Additionally. โ Wireless Display.
โ๏ธ Checking the disabling of duplication on a smartphone
Method 3: Reset your connection settings (if nothing helps)
If the screen duplication continues to activate on its own, the wireless connection settings may have gone wrong, and resetting:
- Go to Settings โ About the phone โ Reset settings.
- Select Network Reset (not a full reset!).
- Confirm the action and restart the device.
โ ๏ธ Note: This method will delete all stored Wi-Fi networks and passwords, as well as Bluetooth settings. Use it only if other methods have failed.
Disable the second screen on the Xiaomi TV (Mi) TV)
If the screen duplication is activated on the Mi TV TV, You can turn it off from the TV side, and from the source side (smartphone, laptop.
Method 1: Through the TV menu
Interface Mi TV This may vary depending on the model, but the general algorithm is:
- On the remote, press the Menu (or Settings) button.
- Go to the Settings section โ Network and Accessories (Network and Accessories).
- Choose Screen Mirroring or Miracast.
- In the list of connected devices, find the active one and click Disable.
On some models (e.g., Mi) TV 4S or Mi TV Q1) The path may be different: Settings โ Devices and accessories โ Wireless Display.
Method 2: Quickly disconnect from the remote
Most Xiaomi remotes have a special button to control screen duplication:
- ๐ Screen Cast button (can be signed as Miracast or Wireless Display).
- ๐ฑ Button with icon of smartphone and TV (on new models of remotes).
Press it once, if the connection is active, the TV will suggest turning it off. If the button is not, use the settings menu as described above.
Method 3: Disabling Automatic Connection
Xiaomi TVs can automatically connect to previously coupled devices to avoid this:
- Go to Settings. โ Network and access โ Screen Mirroring.
- Turn off the Auto Connect or Quick Connect option.
- Remove all saved devices from the list.
โ ๏ธ Note: On PatchWall firmware TVs (e.g. Mi) TV 5 Pro) Automatic connection can be linked to Xiaomi account. in this case, also check the settings in the Mi Home app on your smartphone.
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If the TV doesn't respond to commands from the remote, try disconnecting it for 30 seconds (remove the plug from the outlet).
Disable Google Cast (Chromecast) on Xiaomi
If the second screen appears when you watch a video (for example, from YouTube or Netflix), most likely, Google Cast technology is used, which differs from Miracast in that it does not transmit the entire screen, but only the content from supported applications.
How to turn off Cast on your smartphone
If you have been streaming videos to your TV via Google Cast, do the following:
- Open the app from which the broadcast was broadcast (for example, YouTube).
- Click on the Cast icon (usually in the upper right corner).
- In the list of devices, select Disable or tap on an active TV.
If the Cast icon isnโt visible, check the notification bar โ there may be an active connection there.
How to turn off Cast on TV
On Mi TVs. TV Android TV:
- Press Menu on the remote and select Settings.
- Go to Devices and Accessories โ Google Cast.
- Turn off the Allow Connection option or remove all devices from the list.
On some models (e.g., Mi) TV Stick) the path may be different: Settings โ Network and Internet โ Google Cast.
| Technology | How to turn off on a smartphone | How to turn off on the TV |
|---|---|---|
| Miracast (Screen Mirroring) | Notification panel โ Screen Mirroring โ Shut down. | Settings โ Screen Mirroring โ Disable the device |
| Google Cast | Application (YouTube, etc.) โ Cast icon โ Shut down. | Settings โ Google Cast โ Disconnection. |
| HDMI (wired) | Disable the cable or change the output mode in the settings | Select another signal source on the remote (Source button) |
| DeX (on supported models) | Notification panel โ DeX โ Shut down. | Shut down. HDMI-Cable or change mode in the settings of the TV |
Problems and Errors When Disabling the Second Screen
Sometimes the second screen doesn't turn off in the standard way. Consider the problems and the solutions.
Problem 1: Screen Mirroring button is inactive
If the Screen Mirroring button is in the gray notification bar and does not click:
- ๐ Check if Wi-Fi and Bluetooth are enabled โ Miracast doesnโt work without them.
- ๐ฑ Reboot your smartphone โ sometimes resetting temporary settings helps.
- ๐ Update the firmware - in older versions MIUI There are some screen duplication bugs.
Problem 2: The TV is not displayed in the list of devices
If the Xiaomi TV is not visible in the list of available devices to connect:
- ๐บ Restart the TV (remove the plug for 30 seconds).
- ๐ On your TV, turn on Screen Mirroring mode manually through settings.
- ๐ถ Make sure your smartphone and TV are connected to the same Wi-Fi network (for Google Cast).
Problem 3: Duplication is included in itself
If the second screen is activated without your participation:
- ๐ก๏ธ Check your Xiaomi account settings โ Device sync may be enabled.
- ๐ฑ Remove the Mi Home or Xiaomi app TV Assistant โ They can initialize the connection.
- ๐ Reset your network settings on your smartphone (as described above).
What do you do if nothing helps?
Disable the second screen on the Mi Box and other Xiaomi devices
If you have a Mi Box S or another Xiaomi Android device TV, The switching algorithm will be similar to televisions, but with some nuances.
For the Mi Box S/Mi Box 4
To disable screen duplication:
- On the remote, press Settings.
- Go to Remotes & Accessories โ Screen Mirroring.
- Turn off the Enable Screen Mirroring option or remove all devices from the list.
If the connection was via Google Cast, the path will be different: Settings โ Apps โ Google Cast Receiver โ Force Stop.
For the Mi Notebook or Mi Pad
On Xiaomi laptops and tablets, the second screen usually appears when connected to an external monitor.
- ๐ฅ๏ธ Press Win. + P (on Mi Notebook) and select Only the computer screen.
- ๐ฑ On tablets (Mi Pad 5, etc.), swipe down the notification bar and click Turn off the second screen.
- ๐ If you're connected to HDMI, Just disconnect the cable.
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On Windows devices (such as Mi Notebook), the second screen is controlled via the Win combination. + P or in the display settings. It doesn't depend on the functions. MIUI!
Additional Tips for Working with the Second Screen
If you use screen duplication frequently but want to avoid accidental connections, follow these guidelines:
- ๐ On the Mi TV. TV Set a password to connect to Miracast (in Screen Mirroring settings).
- ๐ต Turn off automatic connection in Google Cast settings (if you donโt use it all the time).
- ๐ฑ On your smartphone, turn off background activity for Mi Home and Xiaomi apps TV Assistant.
- ๐ Regularly update firmware on TV and smartphone โ in new versions, duplicate bugs are fixed.
If you use the second screen for games or work, note the latency of the image.
- ๐ถ Connect your smartphone and TV to a single 5 GHz Wi-Fi network (not 2.4 GHz).
- ๐ฎ In Screen Mirroring settings, select Game Mode (if available).
- ๐ For minimum delay, use a wired connection HDMI (if maintained).
โ ๏ธ Note: Some Xiaomi smartphones (e.g. Black Shark or Black Shark) POCO F series) screen duplication may conflict with game modes, in which case, before connecting, turn off Game Turbo in the settings.