Transferring video from Xiaomi to LG Smart TV seems like a simple task, but in practice users face compatibility problems, lags or lack of sound. In 2026, owners of Redmi, POCO or Xiaomi 13/14 smartphones have at least 7 working ways to sync – from wireless protocols to wired connections. The main thing is to choose a method that supports both devices and meets your tasks: whether transfer to 4K, whether minimum latency or priority is ease of setup.
In this article, we’ll take each connection method, from standard Miracast to obscure features like LG TV Plus, with MIUI 14/15 and webOS 23/24 firmware in mind. You’ll learn how to bypass common bugs (e.g., “Device not found”), what settings you should check before connecting, and how Google Cast is different from live streaming over DLNA. For convenience, we’ve compiled a method table and added checklists to quickly diagnose problems.
1. Wireless transmission via Miracast (Screen Mirroring)
Miracast is the most versatile way to duplicate Xiaomi’s screen on LG TV without any additional devices.It works at the operating system level and does not require Internet, but there are nuances: not all LG models support Miracast in receiver mode, and on Xiaomi the function can be hidden depending on the firmware region.
To activate the transmission:
- 📱 On the phone: open Settings → Connections and sharing → Screen Transfer (or Wireless Display in Older Versions) MIUI).
- 📺 On TV: Go to Settings → Network → Miracast/Screen Share (in webOS) 5.0+ The path may be different: All settings → General. → Devices → Screen Mirroring).
- 🔍 In the list of available devices, select your LG TV. Confirm the connection on both screens.
Important limitations:
- ⚠️ Delay up to 200ms – not suitable for gaming or watching sports broadcasts.
- ⚠️ In some models LG OLED (for example, C2 or G3) Miracast only works through the app. LG Screen Share.
- ⚠️ If the phone screen is not displayed, check if the developer mode on Xiaomi is enabled and debugging is allowed. USB (This sometimes affects wireless protocols).
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If Miracast doesn’t find a TV, try temporarily disabling Bluetooth on your phone — some Xiaomi models conflict with wireless headphones when searching for devices.
2.Use of Google Cast (Chromecast built-in)
LG’s webOS 4.0 and later TVs have built-in support for Google Cast, a technology similar to Chromecast, which allows you to “send” videos from apps (YouTube, Netflix, Gallery) directly to the TV without duplication of the entire screen, the advantage of which is minimal latency and the ability to continue using the phone while broadcasting.
Instructions:
- Make sure your phone and TV are connected to the same Wi-Fi network (guest networks are not supported!).
- Open the video in a supported app (e.g. Google Photos or MX Player).
- Slip on the Cast icon (usually in the upper right corner) and select your LG TV from the list.
- If there is no icon, check if Google Cast is enabled on your TV: Settings → All settings → General → Devices → Google Cast.
Critical note: on Xiaomi phones with shell MIUI China (CN-Cast can be blocked, so you can change the firmware region or use alternative applications like LocalCast.
| Method | Delay. | 4K support | We need one Wi-Fi network. | It works without the internet. |
|---|---|---|---|---|
| Miracast | 150-200 ms. | Yes (on LG OLED 2022+) | No. | Yes. |
| Google Cast | 50-100 ms. | Yes (depending on the appendix) | Yes. | No. |
| DLNA (Smart Share) | 300+ ms. | No (max. 1080p) | Yes. | No. |
| USB-cable (MHL) | 0 ms. | Yes. | No. | Yes. |
3. Transmission via DLNA (LG Smart Share)
DLNA allows you to stream media from your phone to your TV without duplicating your screen. Xiaomi has a built-in Media Player app, and LG has a Smart Share feature. It's convenient for watching home videos or photos, but it's not suitable for streaming from YouTube or TikTok.
How to set up:
- 📱 On the phone: open the Gallery or Media Player, select the video → More. → Transmit it to the device.
- 📺 On TV: activate Smart Share in Settings → Network → Media sharing (DLNA).
- 🔄 If devices can’t see each other, restart the router — DLNA sensitive to network settings.
⚠️ Attention: LG Smart Share does not support.mkv and.mov with codecs H.265. If the video is not played, convert it to.mp4 (H.264) via Video Converter.
Whether it's on DLNA-TV-server|Telephone and TV on the same Wi-Fi network|The file has a supported format (.mp4,.avi)|Disabled. VPN and a proxy on the phone-->
4. Wired connection via USB (MHL/OTG)
If wireless methods cause lags or you don’t have access to Wi-Fi, use USB-cable. Modern televisions. LG (series QNED, NanoCell supports technology MHL (Mobile High-Definition Link, which allows you to display images from your phone via a port USB-C/HDMI. Xiaomi will need an adapter USB-C → HDMI (For example, Xiaomi Mi USB-C to HDMI).
Step-by-step:
- Connect the adapter to the phone’s USB-C port and the other end to the TV’s HDMI port (use a port labeled MHL or ARC).
- On the TV, select the signal source: HDMI (corresponding to the port).
- On the phone, activate HDMI Mode in the screen settings (in some Xiaomi models, this happens automatically).
Important: Not all adapters support 4K@60Hz. For maximum resolution, choose certified adapters with a DisplayLink chip or MHL 3.0. Also note that when connected, the phone will charge slower due to current limitations.
5. LG TV Plus app (for older models)
If your LG TV is released before 2018 (such as the UK6300 or LJ550V series), the built-in protocols may not work smoothly, in which case the official LG TV Plus app (available on Google Play) will help, emulating the remote control and allowing you to stream media files over the local network.
How to use:
- 📱 Install. LG TV Plus to your phone and register (you can google or LG Account).
- 📺 On the TV, turn on the Mobile option TV On in Settings → General. → Mobile connectivity.
- 🔗 In the app, select your TV from the list and confirm the pairing (the TV screen will appear). PIN-code).
- 🎬 To transmit the video, click Media → Local files and select the desired file.
⚠️ Attention: Annex LG TV Plus does not support video with resolution above 1080p It can be "hang-up" when transferring files weighing more than 2 GB. USB-storage DLNA.
Why does LG TV Plus not see the phone?
6.Alternative methods: AirDroid, ApowerMirror, Plex
If the standard methods don't work, use third-party apps that offer additional features like screen recording, annotations, or Bluetooth audio.
Top.-3 apps → LG:
- 📲 AirDroid Cast – supports screen transfer over Wi-Fi or via USB-Minimal latency cable (suitable for gaming) minus: free version limits session to 5 minutes.
- 📲 ApowerMirror allows you to control your TV from your phone (useful for presentations.
- 📲 Plex creates a home media server for streaming movies.
For ApowerMirror, the instruction is:
1. Install the app on your phone and TV (via LG Content Store).
2 Connect both devices to the same network.
3. On your phone, select Connect to TV → LG TV.
4 Enter PIN- code from the TV screen.💡
The side of the app is useful if you need not only to transfer video, but also to control the TV from the phone (for example, use the phone as a touchpad or keyboard).
7 Problem Solving: What to Do When Nothing Works
If none of the methods worked, check the following points:
General errors and corrections:
- 🔌 «Device not found": Reboot the router and turn off the function on it AP Isolation (it blocks device interaction on the network). On Xiaomi phone, turn on Developer Mode and activate Debugging over Wi-Fi.
- 🎵 No audio when transmitting: In Miracast settings on your phone, select Transmit Sound. On TV, check if the sound is turned off in Settings → Sound. → Exit HDMI.
- 📶 Lags and stuttering videos: Switch the router to 5 GHz (less interference) and close the background apps on your phone (especially messengers and torrents).
If the problem persists, update the firmware on both devices:
- On Xiaomi: Settings → About the phone → System update.
- On LG TV: Settings → Support → Software Update.
⚠️ Attention: On TVs LG Screen Mirroring can be reset from webOS 4.0-4.5 after the update. Check it manually!