Modern multimedia capabilities allow you to display content from your smartphone on a large screen, turning ordinary video viewing into a real cinema. Technology Wi-Fi Direct is one of the most convenient ways to establish communication between devices without the need for extra wires and a router. Owners of the equipment Xiaomi And LG often face the need to display photographs or run a movie on a wide-screen TV.
The setup process may seem complicated at first glance, but following the steps sequentially guarantees a stable connection. In this article, we'll detail the steps for pairing devices and explore the nuances of the protocol. Miracast We'll troubleshoot common connection issues. You won't need an active internet connection, as the devices create their own local network.
How Wi-Fi Direct and Miracast Work
Technology Wi-Fi Direct allows two devices to connect directly, bypassing an access point. Smartphone Xiaomi in this case, it acts as a signal source, and the TV LG accepts it. This differs from the classic mode, where all devices are connected to a single router. A direct connection provides higher data transfer speeds, which is critical for streaming high-definition video.
The standard used to transmit images Miracast, which is part of the Wi-Fi Alliance specifications. It enables real-time encoding of video and audio streams. It's important to understand that latency during transmission is minimal, but it does exist. Therefore, playing fast-paced shooters over such a connection may be uncomfortable, but it's ideal for watching movies or presentations.
Technical details of the protocol
The Miracast protocol uses H.264 codecs for video and AAC/AC3 for audio. Resolution can reach 1080p and even 4K depending on the smartphone's processor power and TV support. Compression occurs on the fly, which requires computing resources.
It is worth noting that not all TV models LG This feature is supported natively in older firmware versions. In such cases, a software update or the use of external adapters may be required. However, most modern Smart TVs come with a built-in module. Screen Share, which is based on Wi-Fi Direct technology.
Preparing equipment for pairing
Before starting setup, make sure both devices are working properly and ready to use. Check your smartphone's battery charge. Xiaomi, since the process of broadcasting the screen consumes a significant amount of energy. TV LG must be turned on and in Smart TV mode or at an input where the wireless connection function is available.
Make sure Wi-Fi is enabled on both devices. Even if you're not connected to your home network, the radio should be active to scan for available peers. It's also recommended to close background apps on your phone that may be consuming data or loading the processor, causing lag.
☑️ Check before connection
If you use a 5 GHz router for other purposes, make sure it doesn't interfere with the channel Wi-Fi Direct is trying to use. Although the technology can switch frequencies, finding a device may take longer in crowded airwaves. It's best to set up the router close to your TV.
Setting up an LG TV to receive a signal
The first step is to activate the reception function on the TV side. In the menu LG This option may have different names depending on the version of the webOS operating system. Most often, it is hidden in the section Settings → Connection → Screen Share or Connecting to a mobile device.
Once standby mode is activated, the TV will begin scanning the airwaves for connection requests. A message may appear on the screen indicating that the device is ready to connect and is awaiting a PIN or confirmation. Do not exit this window until you have completed setup on your smartphone.
| WebOS model | Path to the menu | Function name | Visibility status |
|---|---|---|---|
| WebOS 3.0-4.0 | All entrances | Screen Share | Visible immediately |
| WebOS 5.0+ | Main menu | Connecting to a mobile device | Requires activation |
| NetCast 6.0 | Smart | Smart Share | Always active |
| WebOS 2.0 | Network settings | Miracast | Visible in the list |
In some cases, the TV's security system may ask for permission to connect a new device.
Instructions for connecting a Xiaomi smartphone
Now let's move on to setting up your smartphone. XiaomiThe interface of MIUI or HyperOS may differ slightly, but the logic remains the same. Open the quick settings panel by swiping down from the top and find the icon Broadcast or CastIf it's not on the first screen, click the pencil or three dots to edit the panel.
Alternative way via settings: go to Settings → Connection and Sharing → BroadcastThe system will automatically begin searching for available devices. Your TV should appear in the list. LG with the corresponding model name. Click on it to begin pairing.
After selecting the TV, a warning will appear on your smartphone screen informing you that the image will be mirrored. Confirm the action. After a few seconds, your phone's desktop image will appear on the TV. If a PIN is required, it will be displayed on the big screen.
Using the LG TV Plus app
In situations where the standard broadcast is unstable or media file management is required, it is recommended to use the official application. LG TV PlusIt's available in the store. Google Play and optimized for use with Korean TVs. The app not only allows you to mirror your screen but also use your smartphone as a remote control.
To get started, launch the app and follow the on-screen instructions. It will automatically find your TV on your local network or via Wi-Fi Direct. The app offers more functionality than system streaming: you can display photos, videos, and music separately, without overloading your phone's processor with full screen mirroring.
The advantage of using proprietary software is its support for additional codecs and file formats. If the built-in "Stream" feature doesn't play a certain video format, the app LG TV Plus may cope with the task better, since it takes on some of the decoding itself or uses more flexible transmission protocols.
Solutions to common problems and errors
Despite the simplicity of the technology, users may encounter difficulties. Often, the problem lies in incompatible protocol versions or software glitches. If the TV doesn't detect the phone, try restarting both devices. This resets temporary network configurations and the discovery service cache.
Another possible cause could be an antivirus or firewall installed on your smartphone that is blocking incoming connections. Check your security settings. Xiaomi and make sure that the Cast or Wireless Display app is allowed to run in the background and access the local network.
⚠️ Note: Android antivirus software sometimes flags Wi-Fi Direct connections as potentially dangerous. Add your TV to the exceptions list or temporarily disable protection to test.
If there is a picture but no sound, check the audio settings in the streaming menu. On some models Xiaomi The default audio source remains on the phone. Also, make sure the TV isn't muted or hasn't selected a different audio output source, such as the optical port instead of the speakers.
Optimizing data transmission quality
To achieve the best picture quality, it's important to minimize interference. If you're using a dual-band router, make sure it doesn't force devices onto specific channels that could interfere with the Wi-Fi Direct frequency. Although the direct connection operates independently, the radio airwaves can become congested.
Close all heavy apps on your phone before starting a movie. Background downloads of updates or cloud storage syncing can cause image stuttering. Do Not Disturb mode on Xiaomi It's also useful to prevent incoming notifications from blocking content on your TV screen.
- 📶 Place your smartphone and router (if nearby) at least 1 meter apart to avoid signal interference.
- 🔋 Disable power saving while browsing, as it may limit Wi-Fi performance.
- 📺 Make sure that noise reduction features on your TV are disabled, as they can add delays when processing the signal from your phone.
Remember that streaming quality directly depends on the distance between devices. Being in the same room guarantees a stable signal. Walls and metal structures can significantly weaken the Wi-Fi Direct connection.
Why doesn't my LG TV detect my Xiaomi phone?
Most often, the problem is that one of the devices doesn't support the Miracast standard or the feature is disabled in the settings. Also, check if the TV is hidden in the privacy settings.
Can I play games on my TV using Wi-Fi Direct?
Technically, it's possible, but the input lag will be noticeable. This will make fast-paced games impossible, but it's fine for turn-based strategy games or quiz games.
Does the connection affect internet speed?
When using pure Wi-Fi Direct, the internet connection is not used at all. If streaming through a router (DLNA/Cast), the channel is split, and speed may drop.
Is it safe to connect to someone else's TV?
Connection is impossible without confirmation on the TV screen. However, it's best to refrain from transmitting sensitive data in public places with open access.
How do I turn off the broadcast?
The easiest way is to press the "Disable" button in the notification bar on your phone or switch the signal source on your TV using the remote control.