Modern Xiaomi Redmi smartphones have become so powerful that their screens are often sufficient for viewing content, but sometimes you want more immersion. A large TV screen can turn an ordinary evening into a full-fledged cinema experience, especially when you have a high-quality TV at hand. Wi-Fi routerFortunately, the Android ecosystem and MIUI shell offer many built-in tools for wireless image transfer without the need to buy extra cables.
In this article we will examine in detail all the current methods broadcasts content, from standard system functions to third-party apps. You'll learn how to configure your connection so that video is transmitted in high definition without lag or audio desync. This is especially relevant for owners Smart TV various brands, from Samsung to LG.
Before you begin setting up, make sure both devices are yours. Xiaomi Redmi and the TV are connected to the same wireless network. This critically important condition, without which most of the methods described below simply won't work. If your router supports dual bands, it's better to use 5 GHz for transmitting large 4K video files.
Using the built-in Miracast feature
The easiest and fastest way to display an image from a Xiaomi Redmi smartphone on a TV screen is to use the native feature called "Cast" in MIUI. This technology is based on the standard Miracast, which allows you to stream video directly, bypassing cloud storage servers. To activate it, pull down the notification shade and find the "Stream" icon.
If the button you need is not in quick access, go to the menu Settings → Connection and Sharing → BroadcastIn this section, the system will automatically search for available receivers on the local network. A connection permission request may appear on the TV screen, which must be confirmed with the remote control. Once paired, the smartphone screen is fully mirrored onto the large display.
It's worth noting that this method is ideal for displaying photos, presentations, or navigating app menus. However, when viewing dynamic content, such as action movies, a slight image lag may occur. This is normal behavior for the technology. wireless display, depending on the power of the phone's processor and the quality of the signal.
⚠️ Please note: When using full-screen mirroring, your smartphone may drain quickly and become hot. For longer sessions, we recommend connecting your device to a charger or power bank.
Some TV models require signal reception to be activated first. This is usually done via the button. Input or Source On the remote, select "Screen Share," "Miracast," or "Wireless Monitor." Without this step, the phone simply won't see the target device in the list of available devices.
Broadcast via YouTube app and streaming services
If your goal is to watch a specific video or movie, rather than share your entire smartphone screen, it's better to use the built-in casting feature within the apps themselves. Services like YouTube, Netflix, and IVI use the protocol. DLNA or proprietary Google Cast algorithms. This allows the phone to act solely as a remote control, while the TV downloads the video stream itself.
To start playback, open the YouTube app on your Xiaomi Redmi and look for the rectangle with waves (the Cast icon) on the video screen. Tap it to see a list of available devices. Select your TV, and the video will play on the big screen. Picture quality is often higher this way, as Smart TV decodes the stream directly, without loading the phone's resources.
The advantage of this method is the ability to use your smartphone while watching. You can reply to messages, scroll through your social media feed, or even turn off the lock screen—the TV playback won't be interrupted. This makes it ideal for extended viewing of TV series or listening to background music.
☑️ Pre-broadcast check
It's important to understand the difference between this method and full screen casting. If you launch a video from your phone's built-in browser and try to cast it via Miracast, your phone will be more power-hungry. Using the button within the YouTube app will drain your battery. Xiaomi Redmi minimal, since the bulk of the data is transmitted by the router directly to the TV.
Setting up Chromecast Built-in for Android TV
Owners of TVs with the Android TV or Google TV operating system can take advantage of the technology Chromecast built-inThis feature is built directly into the TV's firmware and doesn't require a physical set-top box. All you need is the Google Home app or the corresponding Google Play services installed on your Xiaomi Redmi smartphone.
The setup process is extremely simple: make sure Bluetooth and location services are enabled on your phone (for initial device discovery). Open any supported app, tap the cast icon, and select your TV. The system will prompt you to complete a security check, displaying a code on both screens for confirmation.
Chromecast technology is highly stable and supports high resolutions, up to 4K HDR. Unlike Miracast, it uses smarter buffer management, reducing the likelihood of image stuttering during unstable signal conditions. However, it requires stable access to Google servers, which may be important to consider when using certain networks.
| Characteristic | Miracast (Broadcast) | Chromecast / DLNA |
|---|---|---|
| Transmission type | Screen mirroring | Content streaming |
| Load on the phone | High (screen active) | Low (works as a remote control) |
| Video quality | Depends on CPU power | Maximum (decodes TV) |
| Work in the background | Impossible | Possible |
What to do if the TV is not found?
If searching for devices fails, try rebooting your router. Sometimes temporarily disabling mobile data (4G/5G) on your phone to force the system to search for devices only via WiFi helps. Also, check if AP Isolation is enabled on your router.
File transfer over local network (DLNA)
When you need to play a video file stored in your smartphone's memory, technology comes to the rescue DLNAThis standard allows for the exchange of multimedia content between devices within the same home network. On the Xiaomi Redmi, this can be done using the built-in file explorer or third-party players such as VLC for Android or MX Player.
Let's look at the process using the popular VLC player as an example. After installing the app, open it and go to the "Network" or "Browsing" section. Your TV should appear in the list of available devices. By accessing your phone's storage through the TV interface (or vice versa, by selecting a renderer in the app), you can launch the file directly.
The main advantage of DLNA is the ability to play files of any format supported by the TV without prior conversion. If the TV doesn't support a certain codec, the phone's player can take over the streaming function, transcoding the stream on the fly, although this will put a strain on the processor. Xiaomi.
⚠️ Please note: TV and app interfaces are constantly being updated. The location of the "Renderer" or "Broadcast" menu items may differ in new software versions. Always consult your TV manufacturer's latest manuals.
For stable DLNA operation, it's best to keep files separate from different folders. Create a separate directory for videos intended for viewing on a TV; this will speed up library scanning by the media server. Some TVs have a limit on the number of simultaneously connected clients, so close unnecessary apps on your phone.
Third-party apps to extend capabilities
MIUI's built-in features are sometimes insufficient, especially if you're experiencing compatibility issues or want to access advanced settings. Google Play There are many utilities designed to improve data transfer. One of the most popular and functional is the Web Video Caster app.
This app is unique in that it can pull video streams from browser pages that don't have a direct Cast button. You simply paste the video link into the address bar of the app's built-in browser, and it analyzes the page, finding a direct link to the video file. The stream is then sent to your TV, bypassing website restrictions.
Another powerful tool is the LocalCast app. It lets you stream not only video but also music and photos. A unique feature of the program is the ability to customize subtitles and select audio tracks during the broadcast, which is extremely convenient when watching foreign-language movies.
When using third-party software, it's important to pay attention to the permissions they request. To function correctly, apps require access to the local network and files. If you deny access to storage, the app won't be able to find video files to stream, and without network access, it won't be visible to the TV.
Solution and connection optimization
Even with proper setup, users may encounter issues such as choppy video, out-of-sync audio, or a complete loss of connection. Most often, this is due to congestion in the wireless channel. If your apartment has many neighboring Wi-Fi networks, the signal may become saturated, especially at the 2.4 GHz frequency.
To diagnose the issue, try running the video in a lower resolution. If the stuttering disappears, the channel's bandwidth isn't sufficient for the 4K stream. In this case, switching the router to the 5 GHz channel, which is less congested and provides higher data transfer speeds, may help. It's also worth checking if there are any heavy downloads or game updates running on your phone in the background.
Sometimes the problem can be resolved by simply updating the TV's firmware or resetting the network settings on your smartphone. On Xiaomi Redmi, this can be done in the "Settings" section. Settings → Connection & Sharing → Wi-Fi → (Selected network) → Remove networkAfter this, re-enter the password and try connecting the devices again.
⚠️ Warning: Do not attempt to stream video over mobile data (sharing) unless you have an unlimited data plan. Data usage is very fast: one hour of HD video can consume up to 3 GB of data.
If all else fails, try temporarily disabling the VPN on your phone. VPNs reroute traffic, and the TV may stop "seeing" the phone because they're on different virtual subnets. Disabling the VPN often immediately resolves the device detection issue.
Frequently Asked Questions (FAQ)
Why doesn't the TV detect my Xiaomi phone?
Most likely, the devices are connected to different networks (for example, one to a guest network and the other to the main network) or client isolation is enabled on the router. Also, check that the signal receiving app (Screen Share) is running on the TV if it doesn't activate automatically.
Is it possible to stream video if there is no internet, only a router?
Yes, Miracast and DLNA don't require internet access; the router needs to create a local network and both devices need to be connected to it. However, YouTube and online movie streaming services require internet access.
How to reduce audio latency during broadcasting?
Lag often occurs when using Miracast. Try switching to Chromecast mode within apps or using an external Bluetooth speaker connected to your phone, manually syncing the audio. Reducing the load on your WiFi channel also helps.
Does Redmi 9A and older models support casting?
Yes, almost all Redmi models support wireless transmission standards, as this feature is built into the Android operating system. The only differences may be in the maximum supported resolution and connection stability.