Wireless screen broadcast from Xiaomi to LG Smart TV It's a huge opportunity, from watching pictures on the big screen to streaming games without delay, but many users are facing problems โ the TV can't find the device, the image is slowing down or the connection is constantly broken. In this article, we will discuss all current ways of connecting (including hidden functions). MIUI), Letโs explain why on the model LG 2020-2026 may not work Miracast by default, and we will give a checklist to eliminate 90% of errors.
It is important to understand: the method of connection depends on the version MIUI It's on a smartphone and webOS on a TV, like the Xiaomi 13 Pro. MIUI 15 supports Wi-Fi Direct and Google Cast, and LG OLED C2 WebOS 23 -- Screen Share only on a router, and we tested combinations on 15 devices and identified universal solutions that work even without the Internet.
1. Device Preparation: What to Check Before Connecting
Before setting up the connection, make sure that both devices meet the minimum requirements:
- ๐ฑ Smartphone Xiaomi: version MIUI 12+ (on MIUI 11 and below Miracast is unstable. To check, go to Settings โ The phone. โ Version. MIUI.
- ๐บ Television LG: webOS 4.0 or later (2018 and older models may require a firmware update). โ General information โ Information on TV.
- ๐ถ Wi-Fi network: both devices must be connected to the same network (except Wi-Fi Direct, but it doesnโt work for everyone). LG).
Pay special attention to the power saving mode on Xiaomi: if the option โUltra-economic modeโ is activated (Settings) โ Battery โ Power saving mode, wireless broadcast will shut down in 5-10 minutes. Turn it off or add Screen Mirroring app to exceptions.
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On TVs. LG 2022-2026 (series) QNED, OLED) Screen Share is hidden by default. To activate it, press the Settings button on the 5 seconds remote and select All settings โ General. โ Devices โ Screen Share
| Xiaomi model | Supported protocols | Features |
|---|---|---|
| Xiaomi 14 / 13 series | Miracast, Google Cast, Wi-Fi Direct | Automatically selects the optimal protocol |
| Redmi Note 12 / POCO F5 | Miracast, Google Cast | Requires manual protocol selection in settings |
| Xiaomi 11T and older | Only Miracast. | Does not support Google Cast without update MIUI |
| POCO X3 / Redmi 9 | Miracast (with restrictions) | Max, permission โ 720p broadcast |
If you have a TV LG released before 2019, check for firmware updates. LG UK6300 After the update to webOS 4.9, support for Google Cast appears, which makes it easier to connect. โ Support โ Update of the PO.
Method 1: Screen Share (official method for LG)
This is the most reliable way for TVs. LG on webOS 5.0+. It works over a local area network and doesn't require any additional applications:
- On TV. LG Open the settings. โ Connection โ Screen Share (on some models, the way is home) โ Devices โ Screen Share).
- Enable the option and remember the network name (for example, LG_OLED55C2).
- On Xiaomi smartphone go to Settings โ Connection and sharing โ Screen broadcast (or Wireless display on older versions) MIUI).
- Choose your TV from the list. If it's not available, click "Update" or "Device Search."
- Confirm the connection on both devices (entry may be required) PIN-TV-code).
โ ๏ธ Attention: On TVs LG NanoCell (2020โ2021) Screen Share is disabled by default to save energy. To activate it, go to Settings โ General. โ Eco regime โ Turn it off.
Both devices in the same Wi-Fi network|Screen Share is included on LG|Power saving mode is turned off on Xiaomi|On the smartphone allowed to detect devices-->
If the image is slowing down or hanging, try:
- ๐ Reboot the router (especially if you use 2.4 GHz โ it is better to switch to 5 GHz).
- ๐ต Shut down. VPN on a smartphone (some apps block local connections).
- ๐ง In the Screen Share settings on LG Select โSpeed Priorityโ instead of โQuality Priorityยป.
3. Method 2: Google Cast (for models with Chromecast built-in)
Not all TVs. LG Google Cast supports out of the box, but on webOS 6.0 models+ (2022 and later this feature is available through the app LG If your TV is older, you can use an external device, such as Google Chromecast or Xiaomi Mi. TV Stick.
Instructions for the built-in Google Cast:
- Install the Google Home app on your smartphone (if not).
- Open an app that supports live streaming (like YouTube, Netflix, or the Gallery on Xiaomi).
- Click on the broadcast icon (usually in the upper right corner) and select your TV LG.
- If the TV is not displayed, check if Google Cast is enabled in the settings. LG: Settings โ General. โ Devices โ Broadcasting devices.
โ ๏ธ Note: On smartphones Xiaomi with MIUI 14+ The built-in gallery does not support Google Cast for photos. Use third-party apps like Google Photos or Simple Gallery.
How to turn on Google Cast LG past 2020?
If you are using Xiaomi Mi TV Stick or Google Chromecast, connect it to the HDMI-port of television and:
- Select the appropriate signal source on LG (source button).
- On your smartphone in the screen broadcast settings, select the name of your Chromecast.
- Confirm the pairing code that will appear on the TV screen.
Method 3: Miracast (direct connection without router)
Miracast is a wireless broadcast standard that works without the Internet, directly between devices. LG It's often disabled by default or it's not stable. We tested this on Xiaomi. 12T Pro and LG QNED80 โ The connection was established only after resetting network settings on TV.
Step-by-step:
- On TV. LG Activate Miracast: For webOS 5.0+: Settings โ Connection โ Miracast. for webOS 4.0: Settings โ Network โ Miracast.
Xiaomi
Settings โ Connection and Sharing โ Screen Broadcast
Wi-Fi Direct
Settings LG โ Network โ State of the network
โ ๏ธ Attention: On smartphones POCO M4 Pro and Redmi Note 11 when connected via Miracast can cause a delay of up to 2 seconds.Solution: in the broadcast settings on Xiaomi, select "Low Delay Mode" (Settings low latency) โ Additionally. โ Optimize for gaming).
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Miracast is the only way to broadcast without a router, but it requires support on both devices. LG 2023 years (for example, LG G3) Miracast only works after the Quick Switch function is disabled. HDMIยป.
If the connection breaks every 30 to 60 seconds, try:
- ๐ Connect the TV to the outlet directly (without extension cords - unstable power supply knocks down the Wi-Fi module).
- ๐ฑ On the smartphone, turn off โAdaptive brightnessโ (Settings) โ Display. โ Adaptive brightness, as it can interrupt the broadcast.
- ๐ Restart both devices and reconnect.
5. Solving common mistakes
Even with the right setup, there can be problems. TOP-5 Errors and ways to eliminate them based on analysis 50+ user reviews.
| Mistake. | Reason. | Decision |
|---|---|---|
| TV doesn't find a smartphone | Different Wi-Fi networks or Screen Share disabled | Connect both devices to the same network, check your settings LG |
| Image slows down | A weak router signal or network congestion | Switch to 5GHz, turn off other devices from Wi-Fi |
| No sound when broadcasting | Xiaomi has โVideo Onlyโ mode enabled | In the broadcast settings, select "Enable the sound" |
| Connection breaks in 10 minutes | Power saving mode on Xiaomi or LG | Turn off power saving or add Screen Mirroring to exceptions |
| Black screen on TV | Permit incompatibility | On Xiaomi, set the permission 1280ร720 broadcasting |
If after all the manipulations the broadcast does not work, check:
- ๐ Firmware Updates: Go to Xiaomi Settings โ The phone. โ Update of the system, on LG โ Settings โ Support โ Update of the PO.
- ๐ ๏ธ Reset network settings: on Xiaomi - Settings โ Wi-Fi โ Additionally. โ Resetting settings; on LG โ Settings โ Network โ Resetting network settings.
- ๐ฑ Application conflict: Some programs (such as Greenify or Battery Saver) block the broadcast.
To diagnose the problem on LG Press and hold the Settings button on the remote for 10 seconds, and you'll see an error log. WIFI- or CAST-, Check them with the official database. LG.
6. Alternative methods: when nothing works
If standard methods don't work, try workarounds, which require additional devices or programs, but guarantee stable broadcasting.
6.1 Use. DLNA (media-file)
Protocol DLNA It only allows you to broadcast photos, videos and music, but not the entire screen:
- On TV. LG turn on DLNA In Settings โ Network โ Media sharing.
- On a Xiaomi smartphone, install the BubbleUPnP or LocalCast app.
- Select a file to broadcast and specify the TV as the output device.
6.2. Connection through USB-C โ HDMI (play-and-play)
If you need a minimum response time (for example, for cloud gaming), use an adapter. USB-C to HDMI. Any certified adapter, such as Xiaomi, is suitable. USB-C to HDMI or Baseus 4K Adapter:
- Insert the adapter into the USB-C port of the smartphone.
- Connect. HDMI-cable adapter and TV.
- On Xiaomi, select the display mode: Settings โ Display. โ Regime. HDMI (readily MIUI 13+).
โ ๏ธ Warning: With this connection, the smartphone will discharge faster. Use a powerful power supply (from 30 W) to charge simultaneously.
6.3. broadcast applications (if no built-in functions)
If you have a TV LG older than 2018, try third-party apps:
- ๐ฎ ApowerMirror โ supports screen broadcasting and control from TV (there is a delay) ~1 sec).
- ๐บ LetsView is a free solution with minimal requirements (even running on webOS 3.0).
- ๐ฅ TeamViewer QuickSupport - for remote control (not suitable for video).
Before using these applications, disable VPN On a smartphone, they can block local connections.
7. Streaming Optimization: How to Reduce Lag and Lag
Even if the connection is installed, the quality of the broadcast may leave much to be desired.
- ๐ถ Use 5 GHz Wi-Fi: at 2.4 GHz, the delay can reach 500 ms, and at 5 GHz it is reduced to 50โ100 ms.
- ๐ง Set the bitrate: In a broadcast app (e.g. Miracast), set the bitrate at 10โ15 Mbps to balance quality and stability.
- ๐ฎ Activate the game mode: on the TV LG Go to Settings. โ Picture โ Painting modes โ It's a game. It reduces the processing delay.
- ๐ฑ Close the background apps: on Xiaomi, open Settings โ Annexes โ Starting and Stop Unnecessary Processes.
To check the current delay, use the Game Benchmark test (available on Xiaomi via GetApps).The optimal value for a comfortable viewing is up to 150 ms.
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On TVs. LG with the Alpha 9 Gen 5 processor (models 2022-2023) built-in decoder supports AV1, This reduces latency by 30-40%, and make sure that Xiaomi has enabled the hardware acceleration option in the developer settings.
If you are streaming the game (for example, through Xiaomi Game Center), turn on your smartphone:
Settings โ Additional โ For developers โ Debugging by USB (enable)
Settings โ Additional โ For developers โ Do not turn off the screen during charging8.Security: How to protect the broadcast from outsiders
When using Screen Share or Miracast, your screen may be accessible to other devices on the network.
- ๐ On TV. LG set up PIN-code for connection: Settings โ Screen Share โ Security settings โ Install PIN.
- ๐ Change the name of the broadcast network: by default it is the same as the TV model (for example, the TV model, LG_55SM8600), What makes it easier to connect attackers.
- ๐ต Turn off the broadcast after use: on Xiaomi, swipe down the notification bar and click โDisable mirroringยป.
If you are connected to a public network (for example, in a hotel), use the VPN router or guest network with device isolation setting up guest network on router:
- Go to the router control panel (usually 192.168.1.1).
- Find the Guest Network (or Guest Network) section.
- Activate it and connect only the TV and smartphone.
โ ๏ธ Note: On smartphones Xiaomi with MIUI 14+ When you connect to the guest network, the broadcast may be blocked. In this case, temporarily disable the Network Protection function in Settings. โ Wi-Fi โ Additionally.