You want to stream a video from Xiaomi on the big screen LG Smart TV, Wireless Wi-Fi is the most convenient way to mirror the screen without any extra wires, but there are nuances, POCO X5, Xiaomi 14) and TV (LG OLED C2, LG NanoCell 86, LG QNED 90) different protocols are available: Miracast, Google Cast (via YouTube or Google Home) and proprietary LG Screen Share.
In this article, we will discuss all the current ways of connecting, including bypassing common errors such as “device not found” or “no sound when broadcasting”, paying special attention to setting low-latency mode for games and optimizing picture quality when watching movies in the video. 4K HDR. And if you LG Smart TV Released before 2018 – we will tell you how to update the firmware to support modern standards.
1. Device Preparation: What to Check Before Connecting
Before trying to connect Xiaomi and LG Smart TV, Make sure both devices meet the minimum requirements, which will save time and save you from frustration.
Requirements for the Xiaomi phone:
- 📱 Android version: no lower than 8.0 (for Miracast) or 10.0 (for Google Cast). 9A (Android 10 and newer problems will not be, and owners Xiaomi Mi A1 (Android 9 will have to use third-party apps.
- 🔄 Updates MIUI: Check the relevance of the firmware in Settings → The phone. → System updates. Old versions. MIUI They may not support Wi-Fi Direct.
- 📶 Wi-Fi module: should support 5 GHz (for minimum latency) or at least 2.4 GHz. → Wi-Fi → Additionally.
Requirements for LG Smart TV:
- 📺 Model and year of production: TVs LG WebOS 3.0 (2016) and later support Miracast. Google Cast requires webOS 4.0+ (2018 and later.Clarify the version in Settings → General information → Information on TV.
- 🔌 Connection: TV and phone should be on the same Wi-Fi network. If you use Miracast, you can do without a router (direct connection), but it is less stable.
- 🔄 Firmware Updates: Go to Settings → Support → Update the software and install the latest patches. LG C1 2021, after updating to webOS 6.0, Wi-Fi 6 support appeared, which reduced the delay in broadcasting.
⚠️ Attention: If yours LG Smart TV Released before 2016 (e.g, LG 43LF540V), It may not support Miracast, and then you only have a wired connection through the Miracast. HDMI or purchase an external adapter (for example, Microsoft Wireless Display Adapter).
| Protocol | Minimum version of webOS | Supported Xiaomi models | Delay (MS) |
|---|---|---|---|
| Miracast | 3.0 (2016) | All with Android 8.0+ | 50–150 |
| Google Cast | 4.0 (2018) | All with Android 10.0+ | 100–200 |
| LG Screen Share | 5.0 (2020) | All with MIUI 12+ | 30–100 |
2. Method 1: Connect via Miracast (screen mirroring)
Miracast is a wireless screen transmission standard built into most modern Xiaomi and LG Smart TV. It works without internet, but requires Wi-Fi Direct support on both devices.
Pros: minimal latency (ideal for gaming), sound transmission, no link to the router.Cons: can slow at high resolution (4K), Not all apps support protected content (such as Netflix or Disney).+).
Step-by-step:
- Nana LG Smart TV Open the settings. → Connection → Screen Share and select Miracast.
- On Xiaomi phone, lower the notification curtain and find the screen transfer button (or Wireless Display in Settings). → Connections and sharing).
- In the list of available devices, select your name. LG Smart TV (for example, LG_OLED55C2).
- Confirm the connection on the TV if you receive a request.
⚠️ Note: On some Xiaomi models (e.g, POCO F3) Wireless Display is hidden. To enable it, go to Settings. → Special facilities → Features for developers and activate the option of Wireless display.
Telephone and TV on the same network (or Wi-Fi Direct enabled)|
Miracast is on TV, not Google Cast|
Power saving mode is off on the phone |
The sound on the phone is not at a minimum (may not be transmitted)-->
Typical problem solving:
- 🔍 Device not found: restart router or turn on Wi-Fi Direct on TV manually via Settings → Network → Wi-Fi Direct.
- 🔇 No sound: check if the phone is in No Sound mode, and some apps (like TikTok) block Miracast audio transmission.
- 🐢 Lags and brakes: switch to 5GHz Wi-Fi or reduce the broadcast resolution in Miracast settings (if available).
💡
If Miracast is permanently disabled, try turning off the Adaptive Brightness feature on your phone in Settings. → Display. It sometimes conflicts with wireless transmission.
Method 2: Broadcasting via Google Cast (Chromecast)
If Miracast doesn’t work or you need to stream content from specific apps (like YouTube, Google Photos), use Google Cast.This method requires both devices to be connected to the same Wi-Fi network.
Advantages: Stable work with video in 4K HDR, Support for secure content (e.g. Netflix), ability to control playback from your phone. Disadvantages: latency up to 200 ms (not suitable for games), not all applications support Cast.
How to connect:
- Nana LG Smart TV Open the Google Home app (if not, install it from the LG Content Store).
- On Xiaomi, open an app that supports Cast (like YouTube) and tap on the stream icon (📺).
- In the list of devices, select yours. LG Smart TV.
- Start playing the video – it will automatically appear on the TV.
List of apps that support Google Cast:
- 🎬 YouTube, Netflix, Disney+, Twitch
- 📷 Google Photos, Google Chrome (for broadcasting tabs)
- 🎵 Spotify, Yandex Music (Audio only)
⚠️ Attention: On TVs LG From webOS 4.0-5.0, Google Home may not be displayed in the LG Content Store. Install it through LG App Manager (instructions in spoiler below).
How to Install Google Home on Older Models LG Smart TV
If the Cast is not working:
- 🔄 Restart your router: sometimes DHCP-server gives out incorrect IP-address.
- 📱 Update the app: For example, on YouTube, older versions may not see TV.
- 🔒 Turn it off. VPN: some VPN-Services are blocking the local network.
Method 3: Branded LG Screen Share (optimized for the first time) LG)
LG Screen Share is a proprietary technology LG, It's often more stable than Miracast or Google Cast, and it's available on TVs with webOS 5.0 (2020) and later.
Features:
- ⚡ Quick connection (delay) ~30ms).
- 🎮 Support for gamepads (for example, for Xiaomi Game Controller).
- 🔒 It only works with Android 10 phones.+.
Instructions:
- Nana LG Smart TV Open the settings. → Connection → LG Screen Share.
- On Xiaomi phone, turn on screen transfer (as in the Miracast method).
- In the list of devices, select your TV (the name will begin with the LG_).
- Confirm the connection on both devices.
It's important: LG Screen Share automatically optimizes the bitrate for your network. 6, broadcast 4K@60fps lagless.
💡
LG Screen Share is the best choice for TV owners LG 2020 and beyond.It combines low latency Miracast and Google Cast stability.
5. Optimization of broadcast quality: how to remove lags and improve the picture
Even if you have a connection, the quality of the broadcast can be frustrating, like ragged video, low resolution, or audio out of sync. Here's how to fix it.
Settings on Xiaomi phone:
- 📶 Wi-Fi: Switch to 5 GHz (in Settings) → Wi-Fi → If the signal is weak, bring the phone to the router.
- 🔋 Performance mode: activate in Settings → Battery → Performance modes.
- 🎮 For games: in settings Miracast/LG Select Screen Share Game Mode (if available).
Settings LG Smart TV:
- 🔄 Update: C Settings → Support → Update the software check the relevance of the firmware.
| Problem. | Reason. | Decision |
|---|---|---|
| Video's slowing down | Weak Wi-Fi signal | Switch to 5 GHz or use a repeater |
| Low resolution. | Automatically reduce bitrate | Manually install 1080p broadcast |
| No sound. | DRM Blocking (for example, on Netflix) | Use Google Cast instead of Miracast |
| Connection's breaking. | Conflict IP-address | Reboot the router or assign a static router IP |
💡
If you're broadcasting a film in 4K HDR, Turn off the Adaptive Update Frequency function on your phone (in Settings) → Display. It can make you flicker on TV.
6. Alternative ways to connect (if Wi-Fi is not working)
If wireless connectivity is not possible (for example, due to an old TV or Wi-Fi issues), consider alternatives:
1. a wired connection through HDMI:
- 🔌 Buy an adapter. USB-C to HDMI (For new Xiaomi or Micro-USB to HDMI (old-model).
2. Connection through DLNA:
- 📂 It is suitable for photo/video transmission, but not for screen mirroring.
- 📱 On your phone, use the File Manager app.+ (pre-set MIUI).
- 📺 Nana LG Smart TV open up LG Media Server.
External adapters:
- 📡 Microsoft Wireless Display Adapter (~3 000 ₽) — Adds Miracast support to older TVs.
- 🎯 Google Chromecast (~4 500 ₽) — if LG Smart TV Does not support Google Cast.
⚠️ Note: When using adapters USB-C to HDMI Xiaomi with Snapdragon 8 Gen 2 processor (such as Xiaomi 13) may need to enable Debugging mode USB In Settings → For developers.
7. Frequent errors and their solutions
Even if you set it up properly, you can have errors, and we'll look at the most common ones and how to fix them.
Error: "The device is not supported"
- 📱 On the phone: update. MIUI last-minute.
- 📺 On TV: Check Miracast support in Settings → General information.
- 🔄 If nothing helps, reset your network settings on your phone (Settings) → System system → Reset → Resetting Wi-Fi settings).
Error: "There is no sound when broadcasting"
- 🔊 Check if the sound on your phone or TV is off.
- 🎵 In some applications (such as TikTok), Miracast audio is blocked. Use Google Cast.
- 🔧 Nana LG Smart TV Go to Settings. → Sound. → Exit the sound and select the internal speakers.
Error: “The phone screen does not fit on TV”
- 📏 On the phone in the screen transfer settings, select the mode Fit under the screen.
- 📺 On TV in Settings → Picture → Select the aspect ratio Fit or 16:9.
Error: "Permanent connection breaks"
- 📶 Switch to 5GHz Wi-Fi or use a wired connection.
- 🔄 Turn off the power saving mode on your phone for the Wireless Display app.
- 🛠️ Update the router firmware (especially relevant for TP-Link and Asus).